[Federal Register Volume 62, Number 115 (Monday, June 16, 1997)]
[Proposed Rules]
[Pages 32564-32578]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-15659]


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DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration

50 CFR Part 679

[Docket No. 960206024-7123-02; I.D. 043097A]
RIN 0648-AG32


Fisheries of the Exclusive Economic Zone Off Alaska; At-Sea Scale 
Certification Program

AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and 
Atmospheric Administration (NOAA), Commerce.

ACTION: Proposed rule; request for comments.

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SUMMARY: NMFS proposes amendments to the regulations implementing the 
Fishery Management Plan for Groundfish of the Gulf of Alaska and the 
Fishery Management Plan for the Groundfish Fishery of the Bering Sea 
and Aleutian Islands Area (FMPs). This proposed regulatory amendment 
would implement the requirements for certification and at-sea testing 
of scales used to weigh groundfish catch at sea. This action is 
intended to promote the objectives of the FMPs.

DATES: Comments must be received by July 16, 1997.

ADDRESSES: Comments on the proposed rule should be sent to Ronald J. 
Berg, Chief, Fisheries Management Division, Alaska Region, NMFS, P.O. 
Box 21668, Juneau, AK 99802, Attn: Lori J. Gravel, or delivered to the 
Federal Building, 709 West 9th Street, Juneau, AK.
    Send comments regarding burden estimates or any other aspect of the 
data requirements, including suggestions for reducing the burdens, to 
NMFS and to the Office of Information and Regulatory Affairs, Office of 
Management and Budget (OMB), Washington, D.C. 20503, Attn: NOAA Desk 
Officer.

FOR FURTHER INFORMATION CONTACT: Sally Bibb, 907-586-7228.

SUPPLEMENTARY INFORMATION:

Background

    Fishing for groundfish by U.S. vessels in the exclusive economic 
zone of the Gulf of Alaska (GOA) and the Bering Sea and Aleutian 
Islands Management Area (BSAI) is managed by NMFS according to the 
FMPs. The FMPs were prepared by the North Pacific Fishery Management 
Council (Council) under authority of the Magnuson-Stevens Fishery 
Conservation and Management Act (Magnuson-Stevens Act). Fishing by U.S. 
vessels is governed by regulations implementing the FMPs at subpart H 
of 50 CFR part 600 and 50 CFR part 679.
    In 1990 the Council requested that NMFS analyze a requirement to 
weigh catch processed at sea. NMFS implemented regulations on May 16, 
1994 (59 FR 25346), requiring processor vessels in the pollock 
Community Development Quota (CDQ) fisheries to either provide certified 
bins for volumetric estimates of catch or scales to weigh catch. In 
September 1994, the Council recommended that NMFS require processor 
vessels participating in the BSAI pollock fisheries to weigh their 
catch before discard or processing. In response to this request, NMFS 
published an Advance Notice of Proposed Rulemaking (ANPR), which 
requested public comment on a three-part scale evaluation and approval 
process on February 20, 1996 (61 FR 6337). Public comment was invited 
through March 21, 1996. Comments relevant to this proposed rulemaking 
are summarized and responded to below in the ``Response to Comments'' 
section.
    The proposed at-sea scale certification program described in this 
rulemaking is designed in response to comments on the ANPR, NMFS 
research evaluating the use of scales on processor vessels, further 
experience using scales on two processor vessels in the CDQ fisheries, 
and the recommendations of a technical advisor hired by NMFS.
    NMFS specifically seeks public comment on the proposed process for 
determining whether a particular scale is capable of weighing 
accurately at sea, the performance and technical requirements in the 
At-Sea Scales Handbook, and the proposed procedures for testing scales 
at sea.

Specifying Which Processors Must Weigh

    This proposed rulemaking does not require specific processors or 
vessels to use certified scales to weigh catch at sea. NMFS currently 
is considering proposing requirements for at-sea weighing in the 
proposed multispecies CDQ fisheries and in the BSAI pollock fisheries 
as recommended by the Council. However, a program for inspecting and 
certifying scales for use in weighing at sea must be established before 
NMFS proceeds with proposed requirements for specific processors or 
vessels to weigh catch at sea.

Response to Comments

    Six letters were received in response to the request for public 
comment on the ANPR. Many of the comments in these letters related to 
whether NMFS should require processor vessels in the BSAI pollock 
fisheries to weigh catch at

[[Page 32565]]

sea. Eight comments related to specific questions in the ANPR about the 
technical or operational aspects of a certified scale program, which is 
the subject of this proposed rulemaking. These comments are addressed 
below.
    Comment 1. Any method of evaluating a scale must first establish 
specifications in detail.
    Response. NMFS concurs. NMFS hired a technical advisor with 
expertise in developing specifications for many different types of 
scales to revise the specifications originally proposed in the ANPR. 
NMFS believes that the level of detail and the applicability of 
performance and technical requirements for scales used to weigh catch 
at sea have been improved in the proposed rule and the At-Sea Scales 
Handbook. NMFS continues to seek public comment in this regard.
    Comment 2. Personnel with the National Type Evaluation Program 
(NTEP) do not have the expertise to evaluate at-sea scales.
    Response. NMFS concurs that NTEP personnel have not evaluated a 
scale designed to compensate for vessel motion, although appropriate 
expertise and test procedures could be developed at accredited 
laboratories in the future. Unlike the ANPR, the proposed rule would 
allow laboratory tests to be conducted at any accredited laboratory.
    Comment 3. It is not feasible to use groundfish as a test material 
for the initial inspection of motion-compensated belt scales on vessels 
because it would require travel to Alaska well in advance of the 
fishing seasons to harvest a small amount of fish for the tests.
    Response. NMFS concurs. The proposed rule would allow initial and 
periodic scale inspections to be conducted at any time during the year 
in either Seattle or Dutch Harbor. Because fish would not be available 
at the time of initial inspection, the proposed rule would allow the 
use of alternative material. However, fish could still be used in daily 
materials tests conducted during the fishing seasons.
    Comment 4. The fishing industry is unwilling to fund the inspection 
and certification program for scales used to weigh catch in the open 
access fisheries.
    Response. The proposed rule does not include a provision that would 
require the fishing industry to pay for scale inspections and 
certifications, although provisions to recover the costs of the scale 
inspections could be added by NMFS in the future if the collection of 
fees for this service were authorized by the Magnuson-Stevens Act. NMFS 
would not pay for laboratory tests conducted under type approval 
requirements. These tests would be the responsibility of the scale 
manufacturer.
    Comment 5. Knowledgeable inspectors must be available to conduct 
scale tests.
    Response. NMFS concurs and intends to designate an agency such as 
the State of Alaska, Division of Measurement Standards, to provide 
trained personnel to inspect and certify at-sea scales. Weights and 
measures inspectors would require little additional training to inspect 
hopper scales, platform scales, and hanging scales as they regularly 
certify these types of scales for use on land. The inspectors are less 
familiar with belt scales. However, the specific requirements listed in 
the At-Sea Scales Handbook combined with written procedures for 
conducting the inspections would assist the inspectors. In addition, 
training on inspecting and certifying belt scales would be provided.
    Comment 6. Results of initial experience with motion-compensating 
scales are not good.
    Response. NMFS has had experience with scales used to weigh catch 
on three processor vessels. In one case, the processor vessel installed 
the scale voluntarily and used it to monitor product recovery rates. 
This processor has reported no problems with the scale in over 5 years 
of use. The other two processor vessels installed scales during the 
1995 pollock nonroe season in order to comply with regulations 
governing the pollock CDQ program. One of these scales was improperly 
installed. An initial inspection of the scale as described in this 
proposed rule would have identified the installation problem before the 
vessel went fishing. The other scale was modified during the fishing 
season in a manner that prevented it from weighing accurately. 
Education of the vessel crew as to how the scale operates appears to 
have resolved this problem.
    Since the ANPR was published, NMFS has contracted with a processor 
vessel to use a motion-compensated belt scale to evaluate the accuracy 
of various methods for making volumetric estimates of catch weight in 
the pollock fisheries. The belt scale was tested nearly every day for 
approximately 14 weeks and weighed the test material within 3 percent 
of its known weight each time it was tested.
    Comment 7. Daily tests of the scale would be costly to industry in 
terms of the lost production time.
    Response. Based on experience testing the scale, NMFS estimates 
that the time required for daily scale tests would be 15 minutes or 
less. NMFS believes testing the scales each day is necessary to 
determine whether they are continuing to weigh accurately at sea.
    Comment 8. Only one scale company manufactures a scale reliable 
enough to accurately weigh catch at sea. This will result in high costs 
for the scale and scale repair and a shortage of qualified technicians.
    Response. NMFS agrees that, thus far, only one company has 
demonstrated that its scale can weigh large quantities of fish at sea 
and pass daily accuracy tests. However, several scale companies are 
developing at-sea scales of various types including belt scales and 
automatic hopper scales. Implementation of specific performance and 
technical requirements is expected to provide the information necessary 
for other scale companies to develop competing products.

At-Sea Scale Certification Program

    Scales used in commerce in the United States are regulated by state 
and local government agencies, based on national standards established 
by the National Conference on Weights and Measures (NCWM) and published 
by the U.S. Department of Commerce, National Institute for Standards 
and Technology (NIST) in Handbook 44. Handbook 44 includes design, use, 
and performance standards for many different weighing and measuring 
devices, including several different types of scales. Scales used by 
processors buying fish in Alaska are required to be certified by the 
State of Alaska, Division of Measurement Standards, based on Alaska 
regulations and Handbook 44.
    Although Handbook 44 contains standards for scales of the general 
description of those that will be used to weigh catch at sea (i.e., 
belt, hopper, platform, and hanging scales), it does not provide 
adequate standards for at-sea scales for several reasons. First, it 
contains no requirement for motion compensation technology, which NMFS 
believes is necessary to weigh accurately at sea. Second, it contains 
no standards appropriate to evaluate the type of belt scale that has 
been designed for use on processor vessels. NMFS believes this type of 
scale should be an option for vessel owners. Finally, accuracy 
standards or tolerances for scales used in commerce are higher than 
NMFS believes can be achieved at sea.
    The lack of appropriate standards for at-sea scales led NMFS to 
develop the proposed standards for at-sea scale certification in the 
At-Sea Scales Handbook. This handbook was prepared by NMFS with the 
assistance of a technical advisor who was formerly employed with NIST. 
The proposed standards are modeled after

[[Page 32566]]

requirements in Handbook 44 and other international scale standards but 
have been modified to reflect the unique environment in which at-sea 
weighing will occur.
    The proposed rule would add a new Sec. 679.28 to 50 CFR part 679, 
titled ``Equipment and Operational Requirements for Catch Weight 
Measurement'' and would codify the At-Sea Scales Handbook as Appendix A 
to part 679. Section 679.28 would contain vessel owner and operator 
responsibilities for scale certification, at-sea testing, and 
recordkeeping and reporting and would define a scale certified to weigh 
at sea as one that meets the performance and technical requirements in 
Appendix A to part 679, the At-Sea Scales Handbook.
    Compliance with the performance and technical requirements in the 
At-Sea Scales Handbook would be evaluated through both laboratory tests 
and scale inspections. First, the model of scale would be tested in a 
laboratory to verify that it meets technical requirements and weighs 
accurately under some of the environmental factors expected on 
commercial fishing and processing vessels. This process is know as 
``type evaluation''.
    Second, each installed scale would be certified by an inspector 
authorized by the Administrator, Alaska Region, NMFS (Regional 
Administrator) in initial and periodic inspections. A certified scale 
would be required to be recertified each year. In addition, the scale 
would have to be recertified if it is modified or removed from the 
vessel and reinstalled. Further, to being certified, the scale would be 
required to weigh accurately at sea as determined by tests performed 
each day by the vessel crew and witnessed by the NMFS-certified 
observer.
    Compliance with Sec. 679.28 would require successful completion of 
all three elements described above. The scale would be required to 
successfully meet both the type evaluation and inspection requirements 
to be certified. Once certified, the scale would be required to 
continue to weigh accurately at sea. A certified scale that did not 
pass daily scale performance tests would not comply with the 
regulations and an uncertified scale could not be used even if it 
passed daily scale tests.
    NMFS believes that the three-part scale testing and inspection 
process is necessary to prevent the installation and use of equipment 
that is not suited for the environment in which it will be used and to 
minimize the number of scales that develop problems during a fishery. 
The type-evaluation process would evaluate how a scale performs under 
laboratory simulation of the at-sea environment--tests that cannot be 
performed by a scale inspector on the vessel. Type evaluation also 
would provide the vessel owners added assurance that the model of scale 
they are purchasing has been designed to perform on a vessel and that 
it meets some of the minimum technical and performance requirements for 
at-sea scales. The initial and periodic inspections would verify that 
each scale installed on a particular vessel complies with all technical 
requirements and weighs test material or test weights accurately. The 
inspection also would identify improper installations or malfunctioning 
scales and verify that the vessel owner has provided the test material 
required for the at-sea scale tests. The at-sea scales tests would be 
the only tests that would determine whether the scale weighs accurately 
at sea. NMFS is not proposing to require laboratory simulation of 
vessel motion due to the complexity and cost of this type of testing. 
The scale inspections would occur at the dock, under conditions of 
minimal vessel motion.
    The At-Sea Scales Handbook contains requirements for four different 
types of scales that may be used to weigh fish on a vessel. They are 
(1) belt scales, (2) automatic hopper scales, (3) platform scales, and 
(4) hanging scales. The handbook has a separate section for belt scales 
and automatic hopper scales. The requirements for platform and hanging 
scales are combined in a third section. Type evaluation requirements 
for all scales are included in an annex to Appendix A.
    Only these four types of scales could be certified under the 
proposed program. No other type of weighing or measuring device could 
be certified under this program until certification standards are 
developed and added to Sec. 679.28 and Appendix A.
    Performance standards and technical requirements for four different 
types of scales are necessary because of the many possible applications 
for at-sea scales. Belt scales are most appropriate for high volume, 
continuous flow operations such as trawl catcher/processors or 
motherships. However, these scales may not weigh as accurately in low 
volume or discontinuous flow operations such as on longline or pot 
catcher/processors. Automatic hopper scales could be used for both 
types of operations because they accumulate fish in a hopper until a 
certain target weight is reached, then fish are released back onto the 
factory line. Platform and hanging scales are included because they 
could be used to weigh fish in small quantities.

Type Evaluation

    Type evaluation is a one-time test of a model or type of scale to 
determine whether the scale meets technical requirements and functions 
within specified parameters under the environmental conditions expected 
on a vessel. In order to obtain type approval, a scale company would 
submit one scale of a particular model or type for laboratory tests. If 
that scale met the performance and technical requirements, the 
laboratory certification would cover all scales of this particular 
model. The proposed regulations would not require laboratory testing of 
each individual scale.
    One of the most important technical requirements that would be 
verified by the laboratory would be whether the scale was designed to 
compensate adequately for the effect of motion on the weight indicated 
by the scale. NMFS proposes to require that scales be equipped with 
automatic means to compensate for the motion of a vessel at-sea in the 
form of a reference load cell and a reference mass weight or other 
equally effective means. The reference mass weight would be weighed by 
the reference load cell and a motion-compensation adjustment factor 
would be calculated and applied to the fish weight. For example, assume 
that the reference mass weight actually weighed 10 kg, but the motion 
of the vessel was such that the reference load cell sensed that it 
weighed only 9.9 kg. In this case, the scale would adjust the weight of 
the fish it was weighing by the same ratio as the indicated error in 
the reference weight (see sections 2.3.2.6, 3.3.4.3, and 4.3.2.3 in the 
At-Sea Scales Handbook). Scale manufacturers who wish to use a 
different but at least as effective means of motion-compensation as 
described above would be required to provide NMFS with laboratory or 
field test results demonstrating that the scale is capable of weighing 
accurately at sea.
    One scale manufacturer has submitted laboratory test results to 
NMFS for a motion-compensated belt-conveyor scale. The tests were 
performed at a Danish laboratory and would comply with many of the 
requirements proposed in this rulemaking. Other types of motion-
compensated scales would have to be submitted to a laboratory for 
evaluation, which could take up to 3 months to complete. Certification 
of successful completion of laboratory tests would be required before 
the an inspector could test and certify a scale installed on a vessel.
    Requirements for the laboratory tests are contained in two 
different areas of the handbook. Requirements specific to

[[Page 32567]]

a particular type of scale are found in sections 2, 3, and 4. Test 
procedures common to all scales are found in the annex to the handbook. 
For example, section 2 contains specific requirements for belt scales. 
Section 2.2 contains performance standards for belt scales. Section 
2.2.1 contains the maximum permissible errors (mpe) for tests of the 
belt scale and section 2.2.1.1 contains the mpes for the laboratory 
tests of the belt scale. Similarly, section 3.2.1.1 contains the mpes 
for the laboratory tests of automatic hopper scales and section 4.2.1.1 
contains the mpes for laboratory tests for platform and hanging scales.
    The laboratory tests, described in the annex, are divided into 
disturbance tests and influence quantity tests. Disturbances refer to 
events that may occur while the scale is being used, but that are not 
within the rated operating conditions of the scale, such as short time 
power reduction, power bursts, electrostatic discharge, and 
electromagnetic susceptibility. Influence quantities refer to factors 
that may affect the accuracy of the scale weight and are within the 
rated operating conditions of the scale, such as temperature, humidity, 
and power voltage fluctuations.
    Each scale submitted for type evaluation would be tested for 
disturbances and influence quantities based on the performance 
requirements of applicable sections of the handbook and on the test 
procedures in the annex. The scales also would be evaluated for 
compliance with the technical requirements in each section, such as 
scale markings, printed output, display units and capacity, permanence 
of marking, event loggers to record scale adjustments, and means to 
retain information in memory in the event of a power loss.
    Complete, signed type-evaluation certification documents would be 
required to be received by the Regional Administrator before any scale 
of the particular model could undergo an initial inspection by the 
authorized inspector. The Regional Administrator would maintain a list 
of scales that had successfully completed type-evaluation requirements 
and make this list available to the public upon request. The type-
evaluation certification documents would include an application form, 
checklists to verify compliance with all performance and technical 
requirements, and test report forms to record the results of specific 
tests. NMFS would provide the blank forms to scale manufacturers, 
laboratories, and vessel owners upon request.
    Laboratories certifying compliance with type-evaluation 
requirements would have to be accredited by the U.S. Government or by 
the government of the country in which the laboratory is located. For 
example, in the United States, a laboratory may be accredited by 
programs recognized by the NIST such as the National Voluntary 
Laboratory Accreditation Program. Information about laboratory 
accreditation must be provided on the type evaluation certification 
documents and would be evaluated by the Regional Administrator through 
consultation with NIST or the national weights and measures agency of 
the country in which the laboratory is located.
    The performance and technical requirements for laboratory tests for 
belt scales specified in the At-Sea Scales Handbook are based, in part, 
on the International Organization of Legal Metrology's (OIML) 
international recommendations for continuous totalizing automatic 
weighing instruments (R-50). Manufacturers of belt scales may request 
that the Regional Administrator accept laboratory tests performed to 
demonstrate compliance with OIML R-50 standards in lieu of laboratory 
tests in the At-Sea Scales Handbook. These manufacturers would have to 
submit written and signed copies of the laboratory test results. Any 
requirements in the At-Sea Scales Handbook that are not in the OIML R-
50 standards would be required to be verified by an independent 
laboratory. NMFS would have these requests reviewed by a technical 
advisor to verify that the proposed laboratory test results met the 
requirements of the At-Sea Scales Handbook.
    NMFS seeks public comment on whether existing laboratory 
certification processes in the United States or elsewhere could 
similarly be used in lieu of the proposed type evaluation certification 
requirements for automatic hopper scales, platform scales, or hanging 
scales. Comments must specifically address the source of the 
alternative laboratory test specifications and the type of 
certification documents that could be accepted by NMFS.

Initial and Periodic Inspections

    The initial inspection of each scale installed on a vessel would be 
performed by an authorized weights and measures inspector designated by 
the Regional Administrator based on the performance and technical 
requirements in the At-Sea Scales Handbook. The inspector would 
complete certification forms including a checklist and test report 
forms. The vessel owner would be required to maintain a copy of the 
scale certification documents on the vessel at all times when a 
certified at-sea scale was required to be used and to submit a copy to 
NMFS. NMFS would maintain a list of vessels with current scale 
certifications.
    The initial inspection would occur while the vessel is in drydock 
or tied up in either Seattle or Dutch Harbor. The vessel owner would be 
responsible to schedule inspections with the authorized weights and 
measures inspectors designated by the Regional Administrator. The 
vessel owner would be required to give the scale inspectors at least 10 
working day's notice prior to the inspection to allow for scheduling 
and travel from anchorage to Seattle or Dutch Harbor. At the time of 
the inspection, the vessel owner would be required to assist the 
inspector in moving test equipment to and from the inspector's vehicle 
and the location on the vessel where the scale is installed.
    Each scale would be inspected to determine compliance with 
technical requirements such as level installation; proper marking of 
information such as name, model designation, and serial number; the 
required indicators and printer; and the proper sealing of adjustable 
components. A ``zero test'' would be performed on all scales to 
determine whether the scale accumulated weight while empty.
    Each scale would be tested for accuracy based on the procedures 
appropriate for the particular type of scale. Belt scales would be 
tested with a ``materials test'' in which an amount of material would 
be first weighed on a certified scale to determine its known weight and 
then weighed on the belt scale. The difference between the known weight 
and the weight indicated by the belt scale would be the error of the 
belt scale. Belt scales would be required to weigh material to within 1 
percent of its known weight in the initial and periodic inspections in 
stationary installations.
    Automatic hopper scales, platform scales, and hanging scales would 
be tested by placing standard test weights in or on the scale in 
different amounts and locations. These scales would be required to 
weigh the standard test weights to within 1 percent of their known 
weight. All test material and weights needed for scales tests during 
the inspection would be provided by the scale inspector.
    Each scale would be tested to determine compliance with 
requirements for printed output. Printed output of the catch weight 
including vessel name and Federal fisheries or processor permit number, 
haul or set number, date and time weighing catch

[[Page 32568]]

from haul or set started and ended, and the weight of fish in each haul 
or set would be required for all scales. In addition, a printed record 
of any tests, adjustments, calibrations, or other procedures performed 
on the scale including month, day, year, and time of procedure, name or 
description of procedure, and result of procedure would be required. 
The inspector also would verify that the test material required to be 
provided by the vessel owner for the at-sea scale tests was on board 
the vessel and in compliance with requirements discussed below.
    Each scale would be required to be certified every year, within 12 
months of the date of the most recent certification. An inspection also 
would be required if the scale is moved to a different location on the 
vessel, undergoes major modifications, or is reinstalled after being 
removed from the vessel.

At-Sea Scale Tests

    At-sea scale tests would be required to determine whether the scale 
weighed accurately in motion. Tests would be performed each day by the 
vessel crew and witnessed by the observer. Each scale would be required 
to weigh the test material within 3 percent of its known weight. If the 
scale did not meet this performance standard, it would be required to 
be recalibrated or repaired and retested. Any material or test weights 
required for the at-sea tests would be provided and maintained by the 
vessel owner. Test material other than fish or any standard test 
weights that will be used to test the scale at sea must be inspected 
and approved by the authorized weights and measures inspector at the 
time of initial or periodic inspections.
    The vessel operator may conduct the scale test at any time that 
does not interfere with the observer's sampling or related duties, 
however, the observer must be notified of a test at least 15 minutes 
before it is conducted and the observer must be present for the test. 
The observer would not be required to determine the time of the test or 
to perform any of the physical labor associated with the test.

Classification

    The Assistant General Counsel for Legislation and Regulation of the 
Department of Commerce certified to the Chief Counsel for Advocacy of 
the Small Business Administration that this proposed rule, if adopted, 
would not have a significant economic impact on a substantial number of 
small entities, as follows:

    The proposed rule would establish a testing and certification 
program for scales to weigh catch at sea in the groundfish fisheries 
off Alaska. It does not include any requirements for specific 
vessels or processors to install or use at-sea scales.
    Because there are no requirements imposed on vessel operators or 
processors, it does not affect the way they do business. There are 
no compliance costs, and there will be no impact on revenues. It 
merely establishes a procedure to be used in the future, if such 
requirements are imposed on vessels and/or processors. Therefore, no 
Initial Regulatory Flexibility Analysis was prepared.

    This proposed rule has been determined to be not significant for 
purposes of E.O. 12866.
    This proposed rule contains a new collection-of-information 
requirement subject to review and approval by OMB under the Paperwork 
Reduction Act (PRA). This collection-of-information requirement has 
been submitted to OMB for approval. The new information requirements 
include the following: (1) Scale manufacturers must submit completed 
At-Sea Scales Type Evaluation Certification documents to the Regional 
Administrator prior to being placed on the list of eligible at-sea 
scales; (2) vessel owners must submit a copy of the scale certification 
document issued by a scale inspector approved by the Regional 
Administrator to NMFS prior to participating in a fishery in which a 
certified at-sea scale is required; (3) vessel operators must maintain 
a record of the results of daily at-sea scale tests; and (4) vessel 
operators must maintain printed output from the scale. The public 
reporting burden for this collection of information is estimated to 
average 176 hours per response for the type evaluation certification 
documents, 15 minutes per response to submit the scale certification to 
NMFS, 45 minutes per response for the at-sea scale tests, and 3 minutes 
per response for the printed output from the scale. These estimates 
include the time for reviewing instructions, searching existing data 
sources, gathering and maintaining the data needed, and completing and 
reviewing the collection of information. Send comments regarding these 
burden estimates or any other aspect of the data requirements including 
suggestions for reducing the burden, to NMFS (see ADDRESSES) and to the 
Office of Information and Regulatory Affairs, OMB, Washington, DC 20503 
(Attention: NOAA Desk Officer).
    Public comment is sought regarding: Whether this proposed 
collection of information is necessary for the proper performance of 
the functions of the agency, including whether the information has 
practical utility; the accuracy of the burden estimate; ways to enhance 
the quality, utility, and clarity of the information to be collected; 
and ways to minimize the burden of the collection of information, 
including through the use of automated collection techniques or other 
forms of information technology.
    Notwithstanding any other provision of the law, no person is 
required to respond to, nor shall any person be subject to a penalty 
for failure to comply with, a collection-of-information subject to the 
requirements of the PRA, unless that collection-of-information displays 
a currently valid OMB control number.
    The Regional Administrator determined that fishing activities 
conducted under this rule will not affect endangered and threatened 
species listed or critical habitat designated pursuant to the 
Endangered Species Act in any manner not considered in prior 
consultations on the groundfish fisheries of the GOA or BSAI.

List of Subjects in 50 CFR Part 679

    Fisheries, Reporting and recordkeeping requirements.

    Dated: June 10, 1997.
David L. Evans,
Deputy Assistant Administrator for Fisheries, National Marine Fisheries 
Service.

    For the reasons set out in the preamble, 50 CFR part 679 is 
proposed to be amended as follows:

PART 679--FISHERIES OF THE EXCLUSIVE ECONOMIC ZONE OFF ALASKA

    1. The authority citation for part 679 continues to read as 
follows:

    Authority: 16 U.S.C. 773 et seq., 1801 et seq., and 3631 et seq.


Sec. 679.27  [Reserved]

    2. In subpart B, Sec. 679.27 is reserved.
    3. In subpart B, Sec. 679.28 is added to read as follows:


Sec. 679.28  Equipment and operational requirements for catch weight 
measurement.

    (a) Applicability. This section contains the requirements for 
motion-compensated, NMFS-certified scales to weigh catch at sea. This 
section applies only to vessels required to use at-sea scales elsewhere 
in the regulations.
    (b) At-sea scales certification program--(1) List of eligible at-
sea scales. The model of scale must be on the Regional Administrator's 
list of eligible at-sea scales before an inspector will test or certify 
a scale installed on a vessel under paragraph (b)(2) of this section. A 
scale will be included on the list of eligible at-sea scales when the

[[Page 32569]]

Regional Administrator receives the information specified in paragraph 
(b)(1) (i) or (ii) of this section from a testing laboratory accredited 
by the government of the country in which the tests are conducted. Each 
model of scale on the list of eligible at-sea scales will be assigned a 
NMFS type evaluation certification number by the Regional 
Administrator.
    (i) Type evaluation certification documents. The following 
information must be submitted on forms provided by the Regional 
Administrator.
    (A) Type Evaluation Certificate--(1) Information about the scale. 
(i) Name of scale manufacturer.
    (ii) Name of manufacturer's representative.
    (iii) Mailing address of scale manufacturer and manufacturer's 
representative.
    (iv) Telephone and facsimile number of manufacturer's 
representative.
    (v) Model of scale.
    (vi) Serial number of scale being tested.
    (vii) Type of scale, choosing among belt, automatic hopper, 
platform or hanging scale.
    (2) Information about the certifying laboratory. (i) Name of 
laboratory. (ii) Mailing address of laboratory. (iii) Telephone and 
facsimile number of laboratory's representative. (iv) Name and address 
of government agency accrediting the laboratory. (v) Name and signature 
of person responsible for type evaluation certification and date of 
signature.
    (B) Type Evaluation Checklist. The certifying laboratory's 
representative must indicate on the Type Evaluation Checklist form 
whether the scale met applicable performance and technical requirements 
specified in Appendix A (At-Sea Scales Handbook).
    (C) Type Evaluation Test Report Forms. The certifying laboratory's 
representative must provide the results of each applicable test 
specified in Appendix A (At-Sea Scales Handbook) on the Type Evaluation 
Test Report Form.
    (ii) Alternative type evaluation certification documents. Scale 
manufacturers may request that the Regional Administrator consider 
tests performed on belt scales to meet the International Organization 
of Legal Metrology's recommendations for continuous totalizing 
automatic weighing instruments (OIML R-50) in accuracy class 2 as a 
substitute for the requirements specified in Appendix A (At-Sea Scales 
Handbook). The Regional Administrator will review these proposals to 
determine whether the proposed test procedures and results comply with 
the requirements in paragraph (b)(1) of this section.
    (2) At-sea scale inspection certificate. Each scale or scale system 
used to weigh catch at sea must be tested and certified by a scale 
inspector authorized by the Regional Administrator upon initial 
installation. The scale must be recertified each year within 12 months 
of the date of the most recent certification. The scale also must be 
certified after major modification or installation of the scale at a 
different location on the vessel. An at-sea scale inspection 
certificate will be issued by the inspector if the scale meets all 
applicable requirements specified in Appendix A (At-Sea Scales 
Handbook). In order to obtain an at-sea scale inspection certification, 
the vessel owner must:
    (i) Make the vessel and scale available for inspection by a scale 
inspector authorized by the Regional Administrator after the vessel 
owner has installed a model of scale on the Regional Administrator's 
list of eligible at-sea scales described in paragraph (b)(1) of this 
section. The time and place of the inspection may be arranged by 
contacting the authorized scale inspectors. Scale inspections will be 
scheduled no later than 10 working days after the day that the vessel 
owner requests an inspection. Identity of authorized scale inspectors 
can be obtained from NMFS.
    (ii) Transport test weights, test material, and equipment required 
to perform the test to and from the inspector's vehicle and the 
location on the vessel where the scale is installed.
    (iii) Apply test weights to the scale or convey test materials 
across the scale, as requested by the scale inspector.
    (iv) Assist the scale inspector in performing the scale inspection 
and testing.
    (v) Submit a copy of scale certification documents signed by the 
weights and measures inspector to the Regional Administrator and 
maintain a copy of these documents on board the vessel at all times 
when the processor or vessel is required to use a certified scale. 
These documents must be made available to the observer, NMFS personnel, 
or an authorized officer upon request.
    (vi) Make test material or test weights required for the at-sea 
scale tests under paragraph (b)(3)(ii) of this section available to the 
inspector at the time of the inspection.
    (3) At-sea scale tests. Each scale or scale system used to weigh 
catch at sea must be tested each 24-hour period in which fish are 
weighed on the scale to verify that the scale is weighing test material 
within 3 percent of its known weight. The vessel operator must:
    (i) Notify the observer at least 15 minutes before the test will be 
conducted and conduct the test while the observer is present.
    (ii) Provide and maintain the following equipment or materials to 
conduct the test on board the vessel at all times while a daily test is 
required.
    (A) Belt scales. The vessel operator must provide one of the 
following to conduct a daily materials test.
    (1) At least 400 kg of fish whose weight has been determined to the 
nearest kg on a scale other than the scale under test. The scale used 
to determine the known weight of the fish must weigh test weights to 
within 1 percent of their known weight, or
    (2) At least 400 kg of test material whose weight has been 
determined to the nearest kg on a scale certified under this section or 
certified by a state or local weights and measures official. The test 
material must be described in writing. If the test material is 
comprised of more than one package or unit of test material, each unit 
must have a unique identification number or letter, and weight of the 
unit indelibly marked on the exterior of the unit. The identification 
number and weight of each unit of test material must be certified in 
writing by the authorized scale inspector at the time of initial or 
periodic inspection. Replacement units of test material manufactured on 
board the vessel must be marked and weighed on a scale that meets the 
requirements of paragraph (b)(3)(ii)(A)(1) of this section. The NMFS-
certified observer must witness the weighing of the replacement test 
material. Written information including the date the replacement 
material was weighed, the identification number and weight of the 
replacement material, and the identification number and weight of test 
material being replaced must be signed by the vessel operator and 
maintained with the original scale certification documents on the 
vessel.
    (B) Other Types of Scales. The vessel operator must provide 
certified test weights in an amount equal to the largest amount of fish 
that will be weighed on the scale in one weighment. Each test weight 
must have its weight stamped on or otherwise permanently affixed to it. 
The weight of each test weight must be verified annually at the initial 
or periodic scale inspection required under paragraph (b)(2) of this 
section by the authorized weights and measures inspector.
    (iii) Conduct the scale test by placing the test material or test 
weights on or across the scale and recording the

[[Page 32570]]

following information on the at-sea scale test report form.
    (A) Vessel name.
    (B) Month, day, and year of test.
    (C) Time test started to the nearest minute.
    (D) Known weight of test material or test weights.
    (E) Weight of test material or test weights recorded by scale.
    (F) Percent error as determined by subtracting the known weight of 
the test material or test weights from the weight recorded on the 
scale, dividing that amount by the known weight of the test material or 
test weights, and multiplying by 100.
    (iv) Verify that the percent error in each scale test as determined 
in paragraph (b)(3)(iii)(F) of this section is less than or equal to 3 
percent. If the error exceeds this amount the scale may be retested, 
recalibrated, or repaired. A scale test verifying that the scale is 
weighing accurately must be conducted and recorded before the vessel 
can continue weighing catch.
    (v) Maintain the test report form on board the vessel until the end 
of the fishing year during which the tests were conducted and make the 
report forms available to observers, NMFS personnel, or an authorized 
officer. In addition, the scale test report forms must be retained by 
the vessel owner for 3 years after the end of the fishing year during 
which the tests were performed. All scale test report forms must be 
signed by the vessel operator.
    (4) Scale maintenance. The vessel operator must maintain the scale 
in proper operating condition throughout the period of its use and 
assure that adjustments made to the scale are made so as to bring the 
performance errors as close as practicable to a zero value.
    (5) Printed reports from the scale. Printed reports from the scale 
must be maintained on board the vessel until the end of the fishing 
year during which the reports were made and be made available to 
observers, NMFS personnel, or an authorized officer. In addition, 
printed reports must be retained by the vessel owner for 3 years after 
the end of the fishing year during which the printouts were made. All 
printed reports from the scale must be signed by the vessel operator.
    (i) Reports of catch weight. Reports must be printed at least once 
each 24-hour period in which the scale is being used to weigh catch or 
before any information stored in the scale computer memory is replaced. 
The printed catch report must include the information specified in 
Appendix A, sections 2.3.1.8, 3.3.1.7, or 4.3.1.5. The haul or set 
number recorded on the scale print-out must correspond with haul or set 
numbers recorded in the processor's daily cumulative production 
logbook. Scale weights indicated by the scale may not be adjusted.
    (ii) Printed report of scale tests or adjustments. The printed 
report must include the information specified in Appendix A, sections 
2.3.1.11(b), 3.3.1.12(b), and 4.3.1.8(b). 3. Appendix A to Part 679 is 
added to read as follows:

Appendix A to Part 679--At-Sea Scales Handbook: Performance and 
Technical Requirements for At-Sea Scales in the Groundfish Fisheries 
off Alaska

Table of Contents

1.0  Introduction
2.0  Belt Scales
    2.1  Applicability
    2.2  Performance Requirements
    2.2.1  Maximum Permissible Errors (mpe)
    2.2.1.1  Laboratory Tests
    2.2.1.2  Zero Load Tests
    2.2.1.3  Material Tests
    2.2.2  Minimum Flow Rate (Qmin)
    2.2.3  Minimum Totalized Load (min)
    2.2.4  Influence Quantities
    2.2.4.1  Temperature
    2.2.4.2  Power Supply
    2.3  Technical Requirements
    2.3.1  Indicators and Printers
    2.3.1.1  General
    2.3.1.2  Values Defined
    2.3.1.3  Units
    2.3.1.4  Value of the Scale Division
    2.3.1.5  Range of Indication
    2.3.1.6  Resettable
    2.3.1.7  Rate of Flow Indicator
    2.3.1.8  Printed Information
    2.3.1.9  Permanence of Markings
    2.3.1.10  Power Loss
    2.3.1.11  Adjustable Components
2.3.2  Weighing Elements
    2.3.2.1  Speed Measurement
    2.3.2.2  Conveyer Belt
    2.3.2.3  Overload Protection
    2.3.2.4  Speed Control
    2.3.2.5  Adjustable Components
    2.3.2.6  Motion Compensation
    2.3.3  Installation Conditions
    2.3.4  Marking
    2.3.4.1  Presentation
    2.4  Tests
    2.4.1  Minimum Test Load
    2.4.2  Laboratory Tests
    2.4.2.1  Influence Quantity and Disturbance Tests
    2.4.2.2  Zero Load Tests
    2.4.2.3  Material Tests
2.4.3  Initial and Periodic Scale Inspections
    2.4.3.1  Zero Load Tests
    2.4.3.2  Material Tests
3.0  Automatic Hopper Scales
    3.1  Applicability
    3.2  Performance Requirements
    3.2.1  Maximum Permissible Errors (mpe)
    3.2.1.1  Laboratory Tests
    3.2.1.2  Increasing and Decreasing Load Tests
    3.2.2  Minimum Weighment (min)
    3.2.3  Minimum Totalized Load (Lot)
    3.2.4  Influence Quantities
    3.2.4.1  Temperature
    3.2.4.2  Power Supply
    3.3  Technical Requirements
3.3.1  Indicators and Printers
    3.3.1.1  General
    3.3.1.2  Values Defined
    3.3.1.3  Units
    3.3.1.4  Value of the Scale Division
    3.3.1.5  Weighing Sequence
    3.3.1.6  Printing Sequence
    3.3.1.7  Printed Information
    3.3.1.8  Permanence of Markings
    3.3.1.9  Range of Indication
    3.3.1.10  Non-resettable Values
    3.3.1.11  Power Loss
    3.3.1.12  Adjustable Components
    3.3.1.13  Zero-Load Adjustment
    3.3.1.14  Damping Means
    3.3.2  Interlocks and Gate Control
    3.3.3  Overfill Sensor
    3.3.4  Weighing Elements
    3.3.4.1  Overload Protection
    3.3.4.2  Adjustable Components
    3.3.4.3  Motion Compensation
    3.3.5  Installation Conditions
    3.3.6  Marking
    3.3.6.1  Presentation
    3.4  Tests
    3.4.1  Standards
    3.4.2  Laboratory Tests
    3.4.2.1  Influence Quantity and Disturbance Tests
    3.4.2.2  Performance Tests
    3.4.3  Initial and Periodic Scale Inspections
4.0  Platform Scales and Hanging Scales
    4.1  Applicability
    4.2  Performance Requirements
    4.2.1  Maximum Permissible Errors (mpe)
    4.2.1.1  Laboratory Tests
    4.2.1.2  Increasing and Decreasing Load and Shift Tests
    4.2.2  Minimum Load
    4.2.3  Influence Quantities
    4.2.3.1  Temperature
    4.2.3.2  Power Supply
    4.3  Technical  Requirements
    4.3.1  Indicators and Printers
    4.3.1.1  General
    4.3.1.2  Values Defined
    4.3.1.3  Units
    4.3.1.4  Value of the Scale Division
    4.3.1.5  Printed Information
    4.3.1.6  Permanence of Markings
    4.3.1.7  Power Loss
    4.3.1.8  Adjustable Components
    4.3.1.9  Zero-Load Adjustment
    4.3.1.10  Damping Means
    4.3.2  Weighing Elements
    4.3.2.1  Overload Protection
    4.3.2.2  Adjustable Components
    4.3.2.3  Motion Compensation
    4.3.3  Installation Conditions
    4.3.4  Marking
    4.3.4.1  Presentation
    4.4  Tests
    4.4.1  Standards
    4.4.2  Laboratory Tests
    4.4.2.1  Influence Quantities and Disturbance Tests
    4.4.2.2  Performance Tests
    4.4.3  Initial and Periodic Scale Inspections
5.0  Definitions
    Annex A to Appendix A of Part 679--Influence Quantity and 
Disturbance Tests

[[Page 32571]]

    A.1  General
    A.2  Test considerations
    A.3  Tests
    A.3.1  Static Temperatures
    A.3.2  Damp Heat, Steady State
    A.3.3  Power Voltage Variation
    A.3.4  Short Time Power Reduction
    A.3.5  Bursts
    A.3.6  Electrostatic Discharge
    A.3.7  Electromagnetic Susceptibility

1.0  Introduction

    (a) This handbook contains the performance and technical 
requirements for scales required under 50 CFR part 679 to weigh, at 
sea, catch from the groundfish fisheries off Alaska. These 
commercial fisheries are managed under the Fishery Management Plan 
for Groundfish of the Gulf of Alaska and the Fishery Management Plan 
for the Groundfish Fishery of the Bering Sea and Aleutian Islands 
Area which were prepared by the North Pacific Fishery Management 
Council under the Magnuson-Stevens Fishery Conservation and 
Management Act (16 U.S.C. 1801, et seq.).
    (b) This handbook was prepared by the National Marine Fisheries 
Service, Alaska Regional Office, with the assistance of a contracted 
technical advisor. The performance and technical requirements in 
this document have not been reviewed or endorsed by the National 
Conference on Weights and Measures. The handbook is published by 
NMFS because specifications for scales used to weigh at sea have not 
been developed by any national or international weights and measures 
agency or organization.
    (c) Revisions, amendments, or additions to this document may be 
made by notification in the Federal Register and an opportunity for 
public comment prior to a final decision on the amendments. Persons 
wishing to propose amendments should submit proposals in writing to 
the Administrator, Alaska Region, NMFS, P.O. Box 21668, Juneau, AK 
99802.
    (d) Types of scales covered by handbook--This handbook contains 
performance and technical requirements for four types of scales. 
Section 2 contains requirements for belt scales. Section 3 contains 
requirements for automatic hopper scales. Section 4 contains 
requirements for platform and hanging scales. Certification of any 
other devices for use to weigh catch at sea will require an 
amendment to Sec. 679.28 and this handbook (Appendix A).
    (e) Testing and Certification Requirements for At-Sea Scales--
Scales used to weigh catch at sea are required to comply with 
performance and technical requirements in four categories:
    (1) Type evaluation or laboratory tests of each model of scale,
    (2) initial inspection by an authorized weights and measures 
inspector of each scale installed on a vessel; (3) periodic re-
inspection by an authorized weights and measures inspector; and (4) 
at-sea tests of the scale's accuracy performed by vessel crew and 
witnessed by a NMFS-certified observer. This handbook contains only 
the performance and technical requirements for type evaluation and 
certification by a weights and measures inspector. Regulations 
implementing the requirements in this handbook and additional 
requirements for scales certified to weigh catch at sea are found at 
Sec. 679.28.

2.0  Belt Scales

    2.1  Applicability. The requirements in this section apply to a 
scale or scale system that employs a conveyor belt in contact with a 
weighing element to determine the weight of a bulk commodity being 
conveyed across the scale.
    2.2  Performance Requirements--2.2.1 Maximum Permissible Errors 
(mpe). The following mpes are specified for laboratory tests and 
initial and periodic inspections of scales in a stationary 
installation. A stationary vessel refers to a vessel that is tied up 
at a dock or anchored near shore and is not under power at sea.
    2.2.1.1  Laboratory Tests. Procedures for disturbance tests and 
influence factors are in Annex A. The following mpes are specified 
for these tests.
    a. Disturbances. The mpe is 0.18 percent of the 
weight of the load totalized.
    b. Influence Factors. The mpe is 0.25 percent of the 
weight of the load totalized.
    c. Temperature Effect at Zero Flow Rate. The difference between 
the values obtained at zero flow rate taken at temperatures that 
differ by 10 deg. C must not be greater than 0.035 percent of the 
weight of the load totalized at the maximum flow-rate for the time 
of the test.
    2.2.1.2  Zero Load Tests. The mpe for zero load tests conducted 
in a laboratory or on a scale installed on a stationary vessel is 
0.1 percent or 1 scale division (d).
    2.2.1.3  Material Tests. The mpe for material tests conducted in 
a laboratory or on a scale installed on a stationary vessel is 
1.0 percent of the known weight of the test material.
    2.2.2  Minimum Flow Rate (Qmin). The minimum flow rate must be 
specified by the manufacturer and must not be greater than 35 
percent of the rated capacity of the scale in kilograms (kg) or 
metric tons per hour (mt/hr).
    2.2.3  Minimum Totalized Load (min). The minimum 
totalized load must not be less than the greater of:
    a. 2 percent of the load totalized in 1 hour at the maximum flow 
rate,
    b. the load obtained at the maximum flow rate in 1 revolution of 
the belt, or
    c. a load equal to 800 scale divisions (d).
    2.2.4  Influence Quantities. The following requirements apply to 
influence factor tests conducted in the laboratory.
    2.2.4.1  Temperature. A belt scale must comply with the 
performance and technical requirements at a range of temperatures 
from -10 deg. C to +40 deg. C. However, for special applications the 
temperature range may be different, but the range must not be less 
than 30 deg. C and must be so specified on the descriptive markings.
    2.2.4.2  Power Supply. A belt scale must comply with the 
performance and technical requirements when operated within a range 
of -15 percent to +10 percent of the power supply specified on the 
descriptive markings.
    2.3  Technical Requirements.
    2.3.1  Indicators and Printers.
    2.3.1.1  General. A belt scale must be equipped with a primary 
indicator in the form of a master weight totalizer, a printer, and a 
rate of flow indicator. It must also be equipped with auxiliary 
means to indicate or print values for specified partial loads. The 
indications and printed representations must be clear, definite, 
accurate, and easily read under any conditions of normal operation 
of the belt scale.
    2.3.1.2  Values Defined. If indications or printed 
representations are intended to have specific values, these must be 
defined by a sufficient number of figures, words, or symbols, 
uniformly placed with reference to the indications or printed 
representations and as close as practicable to the indications or 
printed representations, but not so positioned as to interfere with 
the accuracy of reading.
    2.3.1.3  Units. The weight units indicated must be in terms of 
kilograms.
    2.3.1.4  Value of the Scale Division. The value of the scale 
division (d) expressed in a unit of weight must be equal to 1, 2, or 
5, or a decimal multiple or sub-multiple of 1, 2, or 5.
    2.3.1.5  Range of Indication. The master weight totalizer must 
be capable of indicating at least 99,999,999 kilograms. The 
auxiliary means must be capable of indicating at least the weight of 
the amount of fish that can be harvested in 1 haul or set.
    2.3.1.6  Resettable. The master weight totalizer must not be 
resettable to zero without breaking a security means. The auxiliary 
means to indicate or print specified partial loads must be 
resettable to zero.
    2.3.1.7  Rate of Flow Indicator. Permanent means must be 
provided to produce an audio or visual signal when the rate of flow 
is less than the minimum flow rate or greater than 98 percent of the 
maximum flow rate.
    2.3.1.8  Printed Information. The information printed must 
include:
    a. For fish weight:
    i. the Federal fisheries or processor permit number;
    ii. the haul or set number;
    iii. month, day, year, and time (to the nearest minute) weighing 
catch from the haul or set started;
    iv. month, day, year, and time (to the nearest minute) weighing 
catch from the haul or set ended; and
    v. the total cumulative weight of catch in the haul or set for 
each haul or set.
    b. For the event logger: information specified in Section 
2.3.1.11.b.
    2.3.1.9  Permanence of Markings. All required indications, 
markings, and instructions must be distinct and easily readable and 
must be of such character that they will not tend to become 
obliterated or illegible.
    2.3.1.10  Power Loss. In the event of a power failure, means 
must be provided to retain in a memory the totalized load.
    2.3.1.11  Adjustable Components.
    a. An adjustable component that can affect the performance of 
the scale must be held securely in position and must not be capable 
of adjustment without breaking a security means, or
    b. An audit trail in the form of an event logger must provide 
the following information in electronic and printed form:

[[Page 32572]]

    1. a unique identifying number from 000 to 999 to identify the 
type of adjustment being made to any parameter that affects the 
performance of the scale,
    2. the parameter and amount of change,
    3. the source of the change, and
    4. the date and time (to the nearest minute) of the change.
    2.3.2  Weighing Elements.
    2.3.2.1  Speed Measurement. A belt scale must be equipped with 
means to accurately sense the belt travel and/or speed whether the 
belt is loaded or empty.
    2.3.2.2  Conveyer Belt. The weight per unit length of the 
conveyor belt must be practically constant. Belt joints must be such 
that there are no significant effects on the weighing results.
    2.3.2.3  Overload Protection. The load receiver must be equipped 
with means so that an overload of 150 percent or more of the 
capacity must not affect the metrological characteristics of the 
belt scale.
    2.3.2.4  Speed Control. The speed of the belt must not vary by 
more than 5 percent of the nominal speed.
    2.3.2.5  Adjustable Components. An adjustable component that can 
affect the performance of the belt scale must be held securely in 
position and must not be capable of adjustment without breaking a 
security means.
    2.3.2.6  Motion Compensation. A belt scale must be equipped with 
automatic means to compensate for the motion of a vessel at sea so 
that the weight values indicated are within the maximum permissible 
errors. Such means shall be a reference load cell and a reference 
mass weight or other equally effective means. When equivalent means 
are utilized, the manufacturer must provide NMFS with laboratory or 
field test results demonstrating that the scale can weigh accurately 
at sea.
    2.3.3  Installation Conditions. A belt scale must be rigidly 
installed in a level condition.
    2.3.4  Marking. A belt scale must be marked with the following:
    a. Name, initials, or trademark of the manufacturer or 
distributer.
    b. Model designation.
    c. Non-repetitive serial number.
    d. Maximum flow rate (Qmax).
    e. Minimum flow rate (Qmin).
    f. Minimum totalized load (min).
    g. Belt speed.
    h. Weigh length.
    i. Maximum capacity (Max).
    j. Temperature range (if applicable).
    k. Mains voltage.
    2.3.4.1  Presentation. The markings must be reasonably permanent 
and of such size, shape, and clarity to provide easy reading in 
normal conditions of use. They must be grouped together in a place 
visible to the operator.
    2.4  Tests.
    2.4.1  Minimum Test Load. The minimum test load must be the 
greater of:
    a. 2 percent of the load totalized in 1 hour at the maximum flow 
rate,
    b. the load obtained at maximum flow rate in one revolution of 
the belt, or
    c. a load equal to 800 scale divisions.
    2.4.2  Laboratory Tests.
    2.4.2.1  Influence Quantity and Disturbance Tests. Tests must be 
conducted according to Annex A and the results of these tests must 
be within the values specified in section 2.2.1.1.
    2.4.2.2  Zero Load Tests. A zero load test must be conducted for 
a time equal to that required to deliver the minimum totalized load 
(min). At least two zero load tests must be conducted prior 
to a material test. The results of these tests must be within the 
values specified in section 2.2.1.2.
    2.4.2.3  Material Tests. At least one material test must be 
conducted with the weight of the material or simulated material 
equal to or greater than the minimum test load. The results of these 
tests must be within the values specified in section 2.2.1.3.
    2.4.3  Initial and Periodic Scale Inspections.
    2.4.3.1  Zero Load Tests. A zero load test must be conducted for 
a time equal to that required to deliver the minimum totalized load 
(min). At least one zero load test must be conducted prior 
to each material test. The results of this test must be within the 
values specified in section 2.2.1.2.
    2.4.3.2  Material Tests. At least one material or simulated 
material test must be conducted with the weight of the material or 
simulated material equal to or greater than the minimum test load. 
The results of these tests must be within the values specified in 
section 2.2.1.3.

3.0  Automatic Hopper Scales

    3.1  Applicability. The requirements in this section apply to a 
scale or scale system that is designed for automatic weighing of a 
bulk commodity in predetermined amounts.
    3.2  Performance Requirements--3.2.1 Maximum Permissible Errors 
(mpe). The following mpes are specified for laboratory tests and 
initial and periodic inspections of scales in a stationary 
installation. A stationary vessel refers to a vessel that is tied up 
at a dock or anchored near shore and is not under power at sea.
    3.2.1.1  Laboratory Tests. Procedures for disturbance tests and 
influence factors are in Annex A. The following mpes are specified 
for these tests.
    a. Disturbances. Significant fault (sf) (1 scale 
division).
    b. Influence Factors. The mpe is 0.1 percent of test 
load.
    3.2.1.2  Increasing and Decreasing Load Tests. The mpe for 
increasing and decreasing load tests conducted in a laboratory or on 
a scale installed on a stationary vessel is 1.0 percent 
of the test load.
    3.2.2  Minimum Weighment (min). The minimum weighment 
must not be less than 20 percent of the weighing capacity, or a load 
equal to 100 scale intervals (d), except for the final weighment of 
a lot.
    3.2.3  Minimum Totalized Load (Lot). The minimum totalized load 
must not be less than 4 weighments.
    3.2.4  Influence Quantities. The following requirements apply to 
influence factor tests conducted in the laboratory.
    3.2.4.1  Temperature. A hopper scale must comply with the 
metrological and technical requirements at temperatures from 
-10 deg. C to +40 deg. C. However, for special applications the 
temperature range may be different, but the range must not be less 
than 30 deg. C and must be so specified on the descriptive markings.
    3.2.4.1.1  Operating Temperature. A hopper scale must not 
display or print any usable weight values until the operating 
temperature necessary for accurate weighing and a stable zero-
balance condition have been attained.
    3.2.4.2  Power Supply. A hopper scale must comply with the 
performance and technical requirements when operated within -15 
percent to +10 percent of the power supply specified on the 
descriptive markings.
    3.3  Technical Requirements--3.3.1 Indicators and Printers--
3.3.1.1 General. A hopper scale must be equipped with an indicator 
and a printer that indicates and prints the weight of each load and 
a no-load reference value and also the total accumulated weight of a 
lot. It must also be equipped with auxiliary means to indicate or 
print values for a final partial load. The indications and printed 
information must be clear, definite, accurate, and easily read under 
any conditions of normal operation of the hopper scale.
    3.3.1.2  Values Defined. If indications or printed 
representations are intended to have specific values, these must be 
defined by a sufficient number of figures, words, or symbols, 
uniformly placed with reference to the indications or printed 
representations and as close as practicable to the indications or 
printed representations but not so positioned as to interfere with 
the accuracy of reading.
    3.3.1.3  Units. The weight units indicated must be in terms of 
kilograms.
    3.3.1.4  Value of the Scale Division. The value of the scale 
division (d) expressed in a unit of weight must be equal to 1, 2, or 
5, or a decimal multiple or sub-multiple of 1, 2, or 5.
    3.3.1.5  Weighing Sequence. For hopper scales used to receive 
(weigh in), the no-load reference value must be determined and 
printed only at the beginning of each weighing cycle. For hopper 
scales used to deliver (weigh out), the no-load reference value must 
be determined and printed only after the gross load weight value for 
each weighing cycle has been indicated and printed.
    3.3.1.6  Printing Sequence. Provision must be made so that all 
weight values are indicated until the completion of the printing of 
the indicated values.
    3.3.1.7  Printed Information. The information printed must 
include:
    a. For fish weight:
    i. The Federal fisheries or processor permit number.
    ii. The haul or set number.
    iii. Month, day, year, and time (to the nearest minute) that 
weighing catch from the haul or set started.
    iv. Month, day, year, and time (to the nearest minute) that 
weighing catch from the haul or set ended.
    v. Net weight of the individual loads and the totalized weight 
of the fish in a haul or set.
    b. For the event logger: Information specified in Section 
3.3.1.12.b.
    3.3.1.8  Permanence of Markings. All required indications, 
markings, and instructions must be distinct and easily readable and 
must be of such character that

[[Page 32573]]

they will not tend to become obliterated or illegible.
    3.3.1.9  Range of Indication. The total accumulated weight 
indicator and printer must be capable of indicating and printing at 
least 99,999,999 kg. The auxiliary means must be capable of 
indicating at least the weight of the amount of fish that can be 
harvested in 1 haul or set.
    3.3.1.10  Non-resettable Values. The totalized accumulated 
weight must not be resettable to zero without breaking a security 
means.
    3.3.1.11  Power Loss. In the event of a power failure, means 
must be provided to retain in a memory the total accumulated weight.
    3.3.1.12  Adjustable Components.
    a. An adjustable component that can affect the performance of 
the hopper scale must be held securely in position and must not be 
capable of adjustment without breaking a security means, or
    b. An audit trail in the form of an event logger must provide 
the following information in electronic and printed form:
    1. A unique identifying number from 000 to 999 to identify the 
type of adjustment being made to any parameter that affects the 
performance of the scale.
    2. The parameter and amount of change.
    3. The source of the change.
    4. The date and time (to the nearest minute) of the change.
    3.3.1.13  Zero-Load Adjustment. A hopper scale must be equipped 
with a manual or semi-automatic (push-button) means that can be used 
to adjust the zero-load balance or no-load reference value.
    3.3.1.13.1  Manual. A manual means must be operable or 
accessible only by a tool outside of, or entirely separate from, 
this mechanism or enclosed in a cabinet.
    3.3.1.13.2  Semi-automatic. A semi-automatic means must only be 
operable when the indication is stable within 1 scale 
division, and cannot be operated during a weighing cycle 
(operation).
    3.3.1.14  Damping Means. A hopper scale must be equipped with 
effective automatic means to bring the indications quickly to a 
readable stable equilibrium. Effective automatic means must also be 
provided to permit the recording of weight values only when the 
indication is stable within plus or minus one scale division.
    3.3.2  Interlocks and Gate Control. A hopper scale must have 
operating interlocks so that:
    a. Product cannot be weighed if the printer is disconnected or 
subject to a power loss.
    b. The printer cannot print a weight if either of the gates 
leading to or from the weigh hopper is open.
    c. The low paper sensor of the printer is activated.
    d. The system will operate only in the sequence intended.
    e. If the overfill sensor is activated, this condition is 
indicated to the operator and printed.
    3.3.3  Overfill Sensor. The weigh hopper must be equipped with 
an overfill sensor that will cause the feed gate to close, activate 
an alarm, and stop the weighing operation until the overfill 
condition has been corrected.
    3.3.4  Weighing Elements.
    3.3.4.1  Overload Protection. The weigh hopper must be equipped 
with means so that an overload of 150 percent or more of the 
capacity of the hopper must not affect the metrological 
characteristics of the belt scale.
    3.3.4.2  Adjustable Components. An adjustable component that can 
affect the performance of the hopper scale must be held securely in 
position and must not be capable of adjustment without breaking a 
security means.
    3.3.4.3  Motion Compensation. A hopper scale must be equipped 
with automatic means to compensate for the motion of a vessel at sea 
so that the weight values indicated are within the maximum 
permissible errors. Such means shall be a reference load cell and a 
reference mass weight or other equally effective means. When 
equivalent means are utilized, the manufacturer must provide NMFS 
with laboratory or field test results demonstrating that the scale 
can weigh accurately at sea.
    3.3.5  Installation Conditions. A hopper scale must be rigidly 
installed in a level condition.
    3.3.6  Marking. A hopper scale must be marked with the 
following:
    a. Name, initials, or trademark of the manufacturer or 
distributer.
    b. Model designation.
    c. Non-repetitive serial number.
    d. Maximum capacity (Max).
    e. Minimum capacity (min).
    f. Minimum totalized load (min).
    g. Minimum weighment.
    h. Value of the scale division (d).
    i. Temperature range (if applicable).
    j. Mains voltage.
    3.3.6.1  Presentation. Descriptive markings must be reasonably 
permanent and grouped together in a place visible to the operator.
    3.4  Tests.
    3.4.1  Standards. The error of the standards used must not 
exceed 25 percent of the mpe to be applied.
    3.4.2  Laboratory Tests.
    3.4.2.1  Influence Quantity and Disturbance Tests. Tests must be 
conducted according to Annex A and the results of these tests must 
be within the values specified in section 3.2.1.1.
    3.4.2.2  Performance Tests. Performance tests must be conducted 
as follows:
    a. Increasing load test. At least five increasing load tests 
must be conducted with test loads at the minimum load, at a load 
near capacity, and at 2 or more critical points in between.
    b. Decreasing load test. A decreasing load test must be 
conducted with a test load approximately equal to one-half capacity 
when removing the test loads of an increasing load test.
    3.4.3  Initial and Periodic Scale Inspections.
    At least two increasing load tests and two decreasing load tests 
must be conducted as specified in 3.4.2.2. Additionally, tests must 
be conducted with test loads approximately equal to the weight of 
loads at which the scale is normally used.

4.0  Platform Scales and Hanging Scales

    4.1  Applicability. The requirements in this section apply to 
platform and hanging scales.
    4.2  Performance Requirements.
    4.2.1  Maximum Permissible Errors (mpe). The following mpes are 
specified for laboratory tests and initial and periodic inspections 
of scales in a stationary installation. A stationary vessel refers 
to a vessel that is tied up at a dock or anchored near shore and is 
not under power at sea.
    4.2.1.1  Laboratory Tests. Procedures for disturbance tests and 
influence factors are in Annex A. The following mpes are specified 
for these tests.
    a. Disturbances. Significant fault (1 scale 
division)
    b. Influence Factors. Mpes are in Table 1 below.
    4.2.1.2  Increasing and Decreasing Load and Shift Tests. The 
mpes for increasing and decreasing load and shift tests conducted in 
a laboratory or on a scale installed on a stationary vessel are in 
Table 1.

                                 Table 1                                
------------------------------------------------------------------------
        Test load in scale divisions (d)           Maximum permissible  
------------------------------------------------        error (d)       
                                                ------------------------
                                                     Type               
       Class III               Class IIII         Evaluation      In-   
                                                  and Initial   service 
                                                 verification           
------------------------------------------------------------------------
0 < m*  500   0 < m  50            0.5           1
500 < m       50 < m  200          1.0           2
 2000                                                                   
2000 < m                 200 < m                         1.5           3
------------------------------------------------------------------------
* Mass or weight of the test load.                                      


[[Page 32574]]

     4.2.2  Minimum Load: Class III scale 20 d, Class III scale 10 
d.
    4.2.3  Influence Quantities. The following requirements apply to 
influence factor tests conducted in the laboratory.
    4.2.3.1  Temperature. A scale must comply with the performance 
and technical requirements at temperatures from -10 deg. C to 
+40 deg. C. However, for special applications the temperature range 
may be different, but the range must not be less than 30 deg. C and 
must be so specified on the descriptive markings.
    4.2.3.1.1  Operating Temperature. A scale must not display or 
print any usable weight values until the operating temperature 
necessary for accurate weighing and a stable zero-balance condition 
have been attained.
    4.2.3.2  Power Supply. A scale must comply with the performance 
and technical requirements when operated within -15 percent to +10 
percent of the power supply specified on the descriptive markings.
    4.3  Technical Requirements--4.3.1 Indicators and Printers--
4.3.1.1 General. A scale must be equipped with an indicator and a 
printer. The indications and printed information must be clear, 
definite, accurate, and easily read under any conditions of normal 
operation of the scale.
    4.3.1.2  Values Defined. If indications or printed 
representations are intended to have specific values, these must be 
defined by a sufficient number of figures, words, or symbols, 
uniformly placed with reference to the indications or printed 
representations and as close as practicable to the indications or 
printed representations, but not so positioned as to interfere with 
the accuracy of reading.
    4.3.1.3  Units. The weight units indicated must be in terms of 
kilograms and decimal subdivisions.
    4.3.1.4  Value of the Scale Division. The value of the scale 
division (d) expressed in a unit of weight must be equal to 1, 2, or 
5, or a decimal multiple or sub-multiple of 1, 2, or 5.
    4.3.1.5  Printed Information. The information printed must 
include:
    a. For fish weight:
    i. The Federal fisheries or processor permit number.
    ii. The haul or set number.
    iii. Month, day, year, and time (to the nearest minute) of 
weighing.
    iv. Net weight of the fish.
    v. For the event logger: information specified in section 
4.3.1.8.
    4.3.1.6  Permanence of Markings. All required indications, 
markings, and instructions must be distinct and easily readable and 
must be of such character that they will not tend to become 
obliterated or illegible.
    4.3.1.7   Power Loss. In the event of a power failure, means 
must be provided to retain in a memory the weight of the last 
weighment if it is a non-repeatable weighment.
    4.3.1.8  Adjustable Components.
    a. An adjustable component that can affect the performance of 
the scale must be held securely in position and must not be capable 
of adjustment without breaking a security means, or
    b. An audit trail in the form of an event logger must provide 
the following information in electronic and printed form:
    1. A unique identifying number from 000 to 999 to identify the 
type of adjustment being made to any parameter that affects the 
performance of the scale.
    2. The parameter and amount of change.
    3. The source of the change.
    4. The date and time (to the nearest minute) of the change.
    4.3.1.9  Zero-Load Adjustment. A scale must be equipped with a 
manual or semi-automatic (push-button) means that can be used to 
adjust the zero-load balance or no-load reference value.
    4.3.1.9.1  Manual. A manual means must be operable or accessible 
only by a tool outside of or entirely separate from this mechanism 
or enclosed in a cabinet.
    4.3.1.9.2  Semi-automatic. A semi-automatic means must meet the 
provisions of 3.1.8 or must only be operable when the indication is 
stable within 1 scale division and cannot be operated 
during a weighing cycle (operation).
    4.3.1.10  Damping Means. A scale must be equipped with effective 
automatic means to bring the indications quickly to a readable 
stable equilibrium. Effective automatic means must also be provided 
to permit the recording of weight values only when the indication is 
stable within plus or minus one scale division.
    4.3.2  Weighing Elements--4.3.2.1 Overload Protection. The scale 
must be so designed that an overload of 150 percent or more of the 
capacity must not affect the metrological characteristics of the 
scale.
    4.3.2.2  Adjustable Components. An adjustable component that can 
affect the performance of the scale must be held securely in 
position and must not be capable of adjustment without breaking a 
security means.
    4.3.2.3  Motion Compensation. A hopper scale must be equipped 
with automatic means to compensate for the motion of a vessel at sea 
so that the weight values indicated are within the maximum 
permissible errors. Such means shall be a reference load cell and a 
reference mass weight or other equally effective means. When 
equivalent means are utilized, the manufacturer must provide NMFS 
with laboratory or field test results demonstrating that the scale 
can weigh accurately at sea.
    4.3.3  Installation Conditions. A platform scale must be rigidly 
installed in a level condition. A hanging scale must be freely 
suspended from a fixed support or a crane when in use.
    4.3.4  Marking. A scale must be marked with the following:
    a. Name, initials, or trademark of the manufacturer or 
distributer.
    b. Model designation.
    c. Non-repetitive serial number.
    d. Maximum capacity (Max).
    e. Minimum capacity (min).
    f. Temperature range (if applicable).
    g. Mains voltage.
    4.3.4.1  Presentation. Descriptive markings must be reasonably 
permanent and grouped together in a place visible to the operator.
    4.4  Tests.
    4.4.1  Standards. The error of the standards used must not 
exceed 25 percent of the mpe applied.
    4.4.2  Laboratory Tests--4.4.2.1 Influence Quantities and 
Disturbance Tests. Tests must be conducted according to Annex A and 
the results of these tests must be within the values specified in 
section 4.2.1.1.
    4.4.2.2  Performance Tests. Performance tests must be conducted 
as follows:
    a. Increasing load test. At least five increasing load tests 
must be conducted with test loads at the minimum load, at a load 
near capacity, and at 2 or more critical points in between.
    b. Shift test (platform scales only). A shift test must be 
conducted during the increasing load test at one-third capacity test 
load centered in each quadrant of the platform.
    c. Decreasing load test. A decreasing load test must be 
conducted with a test load approximately equal to one-half capacity 
when removing the test loads of an increasing load test.
    4.4.3  Initial and Periodic Scale Inspections.
    At least two increasing load tests, shift tests, and decreasing 
load tests must be conducted as specified in 4.4.2.2. Additionally 
tests must be conducted with test loads approximately equal to the 
weight of loads at which the scale is normally used. The results of 
all tests must be as specified in Table 1.

5.0  Definitions

    Audit trail--An electronic count and/or information record of 
the changes to the values of the calibration or configuration 
parameters of a device.
    Automatic Hopper Scale--A hopper scale adapted to the automatic 
weighing of a bulk commodity (fish) in predetermined amounts. 
Capacities vary from 50 lb (22.7 kg) to 100,000 lb (45.36 mt). 
Generally equipped with a control panel, with functions to be set by 
an operator, including the start of an automatic operation. (See 
definition of hopper scale).
    Belt Scale--A scale that employs a conveyor belt in contact with 
a weighing element to determine the weight of a bulk commodity being 
conveyed. It is generally a part of a system comprised of an input 
conveyor, the flow scale, and an output conveyor. The conveyor belt 
may be constructed of various materials, including vulcanized 
rubber, canvas, and plastic. The capacity is generally specified in 
terms of the amount of weight that can be determined in a specified 
time, and can vary from for example 1 ton per hour to 100 or more 
tons per hour. An operator generally directs the flow of product 
onto the input conveyor.
    Calibration Mode--A means by which the span of a scale can be 
adjusted by placing a known ``test weight'' on the scale and 
manually operating a key on a key board.
    Disturbances--An influence that may occur during the use of a 
scale but is not within the rated operating conditions of the scale.
    Event logger--A form of audit trail containing a series of 
records where each record contains the number from the event counter 
corresponding to the change to a

[[Page 32575]]

sealable parameter, the identification of the parameter that was 
changed, the time and date when the parameter was changed, and the 
new value of the parameter.
    Final Weighment--The last partial load weighed on a hopper scale 
that is part of the weight of many loads (haul, set, etc.).
    Hanging Scale--A scale that is designed to weigh a load that is 
freely suspended from an overhead crane or it may be permanently 
installed in an overhead position. The load receiver may be a part 
of the scale such as a pan suspended on chains, or simply a hook 
that is used to ``pick-up'' the container of the commodity to be 
weighed. The technology employed may be mechanical, electro-
mechanical, or electronic. The loads can be applied either manually 
or by such means as a crane.
    Hopper Scale--A scale designed for weighing individual loads of 
a bulk commodity (fish). The load receiver is a cylindrical or 
rectangular container mounted on a weighing element. The weighing 
element may be mechanical levers, a combination of levers and a load 
cell, or all load cells. The capacity can vary from  50 
lb (22.7 kg) to > 100,000 lb (45.36 mt). The loads are applied from 
a bulk source by such means as a conveyor or storage hopper. Each 
step of the weighing process, that is the loading and unloading of 
the weigh hopper, is controlled by an operator.
    Indicator--That part of a scale that indicates the quantity that 
is being weighed.
    Influence Factor--A value of an influence quantity, e.g., 
10 deg., that specifies the limits of the rated operating conditions 
of the scale.
    Influence Quantity--A quantity that is not the subject of the 
measurement but which influences the measurement obtained within the 
rated operating conditions of the scale.
    Influence Quantity and Disturbance Tests--Type evaluation tests 
conducted in a laboratory to determine the capability of the scale 
under test to perform correctly in the environmental influences in 
which they are used and when subjected to certain disturbances that 
may occur during the use of the scale.
    Initial Verification--The first evaluation (inspection and test) 
of a production model of a weighing instrument that has been type 
evaluated to determine that the production model is consistent with 
the model that had been submitted for type evaluation.
    Known Weight Test--A test in which the load applied is a test 
weight with a known value simulating the weight of the material that 
is usually weighed.
    Load Receiver--That part of the scale in which the quantity is 
placed when being weighed.
    Material Test--A test using a material that is the same or 
similar to the material that is usually weighed, the weight of which 
has been determined by a scale other than the scale under test.
    Maximum flow-rate--The maximum flow-rate of material specified 
by the manufacturer at which a belt scale can perform correctly.
    Minimum flow-rate--The minimum flow-rate specified by the 
manufacturer at which a belt scale can perform correctly.
    Minimum Load--The smallest weight load that can be determined by 
the scale that is considered to be metrologically acceptable.
    Minimum Totalized Load--The smallest weight load that can be 
determined by a belt scale that is considered to be metrologically 
acceptable.
    Minimum Weighment--The smallest weight that can be determined by 
a hopper scale that is considered to be metrologically acceptable.
    Motion Compensation--The means used to compensate for the motion 
of the vessel at sea.
    No-load Reference Value--A weight value obtained by a hopper 
scale when the load receiver (hopper) is empty of the product that 
was or is to be weighed.
    Non-repeatable Weighment--A process where the product after 
being weighed is disposed with in such a manner that it cannot be 
retrieved to be reweighed.
    Number of Scale Divisions (n)--The number of scale divisions of 
a scale in normal operation. It is the quotient of the scale 
capacity divided by the value of the scale division. n = Max/d
    Performance Requirements--A part of the regulations or standards 
that applies to the weighing performance of a scale, e.g., maximum 
permissible errors.
    Performance Test--A test conducted to determine that the scale 
is performing within the maximum permissible errors applicable.
    Periodic Verification--A verification of a weighing instrument 
at an interval that is specified by regulation or administrative 
ruling.
    Platform Scale--A scale by the nature of its physical size, 
arrangement of parts, and relatively small capacity (generally 500 
lb (226.8 kg) or less) that is adapted for use on a bench or counter 
or on the floor. Load receiver dimensions include, for example, 5 
x  5 inches (12.25  x  12.24 cm), 18  x  24 inches (45.7  x  61.0 
cm), and 30  x  30 inches (76.2  x  76.2 cm). A platform scale can 
be self contained, that is, the indicator and load receiver and 
weighing elements are all comprised of a single unit, or the 
indicator can be connected by cable to a separate load receiver and 
weighing element. The technology used may be mechanical, electro-
mechanical, or electronic. Loads are applied manually.
    Rated Capacity--The maximum flow-rate in terms of weight per 
unit time specified by the manufacturer at which a belt scale can 
perform correctly.
    Scale Division (d)--The smallest digital subdivision in units of 
mass that is indicated by the weighing instrument in normal 
operation.
    Sealing--A method used to prevent the adjustment of certain 
operational characteristics or to indicate that adjustments have 
been made to those operational characteristics.
    Security Seals or Means--A physical seal such as a lead and wire 
seal or a key or code that when a change is made in the operating or 
performance characteristics of a scale it becomes evident.
    Significant Fault--An error greater than the value specified for 
a particular scale. For a belt scale: A fault greater than 0.18 
percent of the weight value equal to the minimum totalized load. For 
all other scales: 1 scale division (d). A significant fault does not 
include faults that result from simultaneous and mutually 
independent causes in the belt scale; faults that imply the 
impossibility of performing any measurement; transitory faults that 
are momentary variations in the indications that cannot be 
interpreted, memorized, or transmitted as a measurement result; 
faults so serious that they will inevitably be noticed by those 
interested in the measurement.
    Simulated Material Test--A test in which the load applied is 
test material simulating the weight of the material that is usually 
weighed.
    Simulated Test--A test in which the weight indications are 
developed by means other than weight, e.g., a load cell simulator.
    Stationary Installation--An installation of a scale in a 
facility on land or a vessel that is tied-up to a dock or in dry 
dock.
    Subsequent Verification--Any evaluation of a weighing instrument 
following the initial verification.
    Suitability for Use--A judgement that must be made that certain 
scales by nature of their design are appropriate for given weighing 
applications.
    Technical Requirements--A part of the regulations or standards 
that applies to the operational functions and characteristics of a 
scale, e.g., capacity, scale division, tare.
    Testing Laboratory--A facility for conducting type evaluation 
examinations of a scale that can establish its competency and 
proficiency by such means as ISO Guide 25, ISO 9000, EN 45011, 
NVLAP, NTEP).
    Type Evaluation--A process for evaluating the compliance of a 
weighing instrument with the appropriate standard or regulation.
    User Requirements--A part of the regulations or standards that 
applies to the operator/owner of the scale.
    Weighment--A single complete weighing operation.

Annex A to Appendix A--Influence Quantity and Disturbance Tests

    A.1  General--Included in this Annex are tests that are intended 
to ensure that electronic scales can perform and function as 
intended in the environment and under the conditions specified. Each 
test indicates, where appropriate, the reference condition under 
which the intrinsic error is determined.

A.2  Test Considerations

    A.2.1  All electronic scales of the same category must be 
subjected to the same performance test program.
    A.2.2  Tests must be carried out on fully operational equipment 
in their normal operational state. When connected in other than a 
normal configuration, the procedure must be mutually agreed to by 
NMFS and the applicant.
    A.2.3  When the effect of one factor is being evaluated, all 
other factors are to be held relatively constant, at a value close 
to normal.
    A.2.3.1  The temperature is deemed to be practically constant 
when the difference between the extreme temperatures noted during 
the test does not exceed 5 deg. C and the variation in time does not 
exceed 5 deg. C per hour.

[[Page 32576]]

    A.2.4  Energize the equipment under test (EUT) for a period of 
time at least equal to the warm-up time specified by the 
manufacturer and maintain throughout the duration of the test.

A.3 Tests

------------------------------------------------------------------------
                                    Characteristics        Conditions   
              Test                     under test           applied     
------------------------------------------------------------------------
A.3.1  Static temperatures......  Influence factor...  mpe              
A.3.2  Damp heat, steady state..  Influence factor...  mpe              
A.3.3  Power voltage variation..  Influence factor...  mpe              
A.3.4  Short time power           Disturbance........  sf               
 reduction.                                                             
A.3.5  Bursts...................  Disturbance........  sf               
A.3.6  Electrostatic discharge..  Disturbance........  sf               
A.3.7  Electromagnetic            Disturbance........  sf               
 susceptibility.                                                        
------------------------------------------------------------------------

A.3  Tests

A.3.1  Static Temperatures

    Test method: Dry heat (non condensing) and cold.
    Object of the test: To verify compliance with the applicable 
maximum permissible under conditions of high and low temperature.
    Reference to standard: See Bibliography (1).
    Test procedure in brief: The test consists of exposure of the 
EUT to the high and low temperatures specified in section 2.2.4.1 
for belt scales, section 3.2.4.1 for automatic hopper scales, and 
section 4.2.3.1 for platform scales and hanging scales, under ``free 
air'' condition for a 2-hour period after the EUT has reached 
temperature stability. The EUT must be tested during a weighing 
operation consisting of:
    For belt scales--the totalization of the 
min, 2 times each at approximately the minimum 
flow rate, an intermediate flow rate, and the maximum flow rate.
    For platform, hanging, and automatic hopper scales--tested with 
at least five different test loads or simulated loads under the 
following conditions:
    a. At a reference temperature of 20  deg.C following 
conditioning.
    b. At the specified high temperature, 2 hours after achieving 
temperature stabilization.
    c. At the specified low temperature, 2 hours after achieving 
temperature stabilization.
    d. At a temperature of 5 deg. C, 2 hours after achieving 
temperature stabilization.
    e. After recovery of the EUT at the reference temperature of 
20 deg. C.
    Test severities: Duration: 2 hours.
    Number of test cycles: At least one cycle.
    Maximum allowable variations:
    All functions must operate as designed.
    All indications must be within the applicable maximum 
permissible errors.
    Conduct of test: Refer to the International Electrotechnical 
Commission (IEC) Publications mentioned in Bibliography (1) for 
detailed test procedures.
    Supplementary information to the IEC test procedures
    Preconditioning: 16 hours.
    Condition of EUT: Normal power supplied and ``on'' for a time 
period equal to or greater than the warm-up time specified by the 
manufacturer. Power is to be ``on'' for the duration of the test.
    Adjust the EUT as close to a zero indication as practicable 
prior to the test.
    Test sequence:
    Stabilize the EUT in the chamber at a reference temperature of 
20 deg. C. Conduct the tests as specified in the test procedure in 
brief and record the following data:
    a. Date and time.
    b. Temperature.
    c. Relative humidity.
    d. Test load.
    e. Indication.
    f. Errors.
    g. Functions performance.
    Increase the temperature in the chamber to the high temperature 
specified. Check by measurement that the EUT has reached temperature 
stability and maintain the temperature for 2 hours. Following the 2 
hours, repeat the tests and record the test data indicated above.
    Reduce the temperature in the chamber as per the IEC procedures 
to the low temperature specified. After temperature stabilization, 
allow the EUT to soak for 2 hours. Following the 2 hours, repeat the 
tests and record the test data as indicated above.
    Raise the temperature in the chamber as per the IEC procedures 
to 5 deg. C. After temperature stabilization, allow the EUT to soak 
for 2 hours. Following the 2 hours, repeat the tests and record the 
test data as indicated above. Note: This test relates to a -10 deg. 
C to +40 deg. C range. For special ranges, it may not be necessary.
    Raise the temperature in the chamber as per the IEC procedures 
and to the 20 deg. C reference temperature. After recovery, repeat 
the tests and record the test data as indicated above.

A.3.2  Damp Heat, Steady State

    Test method: Damp heat, steady state.
    Object of the test: To verify compliance with the applicable 
maximum permissible errors under conditions of high humidity and 
constant temperature.
    Reference to standard: See Bibliography (2).
    Test procedure in brief: The test consists of exposure of the 
EUT to a constant temperature at the upper limit of the temperature 
range and a constant relative humidity of 85 percent for a two day 
period. The EUT must be tested during a weighing operation 
consisting of:
    For belt scales--the totalization of the 
min, 2 times each at approximately the minimum 
flow rate, an intermediate flow rate, and the maximum flow rate.
    For platform, hanging, and automatic hopper scales--tested with 
at least five different test loads or simulated loads at a reference 
temperature of 20 deg. C and a relative humidity of 50 percent 
following conditioning, and at the upper limit temperature and a 
relative humidity of 85 percent, 2 days following temperature and 
humidity stabilization.
    Test severities:
    Temperature: upper limit.
    Humidity: 85 percent (non-condensing).
    Duration: 2 days.
    Number of test cycles: At least one test.
    Maximum allowable variations:
    All functions must operate as designed.
    All indications must be within the applicable maximum 
permissible errors.
    Conduct of the test: Refer to the IEC Publications mentioned in 
Bibliography (2) for detailed test procedures.
    Supplementary information to the IEC test procedures
    Preconditioning: None required.
    Condition of EUT:
    Normal power supplied and ``on'' for a time period equal to or 
greater than the warm-up time specified by the manufacturer. Power 
is to be ``on'' for the duration of the test.
    The handling of the EUT must be such that no condensation of 
water occurs on the EUT.
    Adjust the EUT as close to a zero indication as practicable 
prior to the test.
    Test sequence:
    Allow 3 hours for stabilization of the EUT at a reference 
temperature of 20 deg. C and a relative humidity of 50 percent. 
Following stabilization, conduct the tests as specified in the test 
procedures in brief and record the following data:
    a. Date and time.
    b. Temperature.
    c. Relative humidity.
    d. Test load.
    e. Indication.
    f. Errors.
    g. Functions performance.
    Increase the temperature in the chamber to the specified high 
temperature and a relative humidity of 85 percent. Maintain the EUT 
at no load for a period of 2 days. Following the 2 days, repeat the 
tests and record the test data as indicated above.
    Allow full recovery of the EUT before any other tests are 
performed.

A.3.3  Power Voltage Variation

A.3.3.1  AC power supply

    Test method: Variation in AC mains power supply (single phase).
    Object of the test: To verify compliance with the applicable 
maximum permissible errors under conditions of varying AC mains 
power supply.
    Reference to standard: See Bibliography (3)
    Test procedure in brief: The test consists of subjecting the EUT 
to AC mains power during a weighing operation consisting of:
    For belt scales--while totalizing the min at 
the maximum flow rate.
    For platform, hanging, and automatic hopper scales--at no load 
and a test load between 50 percent and 100 percent of weighing 
capacity.
    Test severities: Mains voltage: upper limit U (nom) +10 percent; 
lower limit U (nom) -15 percent.
    Number of test cycles: At least one cycle.
    Maximum allowable variations:

[[Page 32577]]

    All functions must operate correctly.
    All indications must be within maximum permissible errors 
specified in sections 2, 3, or 4 of this handbook.
    Conduct of the test:
    Preconditioning: None required.
    Test equipment: Variable power source, Calibrated voltmeter, 
Load cell simulator, if applicable.
    Condition of EUT:
    Normal power supplied and ``on'' for a time period equal to or 
greater than the warm-up time specified by the manufacturer.
    Adjust the EUT as close to a zero indication as practicable 
prior to the test.
    Test sequence:
    Stabilize the power supply at nominal voltage 2 
percent.
    Conduct the tests specified in the test procedure in brief and 
record the following data:
date and time,
temperature,
relative humidity,
power supply voltage,
test load,
indications,
errors,
functions performance.
    Reduce the power supply to -15 percent nominal.
    Repeat the test and record the test data as indicated above.
    Increase the power supply to +10 percent nominal.
    Repeat the test and record the test data as indicated above.
    Unload the EUT and decrease the power supply to nominal power 
2 percent.
    Repeat the test and record the test data as indicated above.

    Note: In case of three phase power supply, the voltage variation 
must apply for each phase successively. Frequency variation applies 
for all phases simultaneously.

A.3.3.2  DC power supply 

    Under consideration.

A.3.4  Short Time Power Reduction

    Test method: Short time interruptions and reductions in mains 
voltage.
    Object of the test: To verify compliance with the applicable 
significant fault under conditions of short time mains voltage 
interruptions and reductions.
    Reference to standard: See Bibliography (4) IEC Publication 
1000-4-11 (1994).
    Test procedure in brief: The test consists of subjecting the EUT 
to voltage interruptions from nominal voltage to zero voltage for a 
period equal to 8-10 ms, and from nominal voltage to 50 percent of 
nominal for a period equal to 16-20 ms. The mains voltage 
interruptions and reductions must be repeated ten times with a time 
interval of at least 10 seconds. This test is conducted during a 
weighing operation consisting of:
    For belt scales--while totalizing at the maximum flow rate at 
least the min (or a time sufficient to complete 
the test).
    For platform, hanging, and automatic hopper scales--tested with 
one small test load or simulated load.
    Test severities: One hundred percent voltage interruption for a 
period equal to 8-10 ms. Fifty percent voltage reduction for a 
period equal to 16-20 ms.
    Number of test cycles: Ten tests with a minimum of 10 seconds 
between tests.
    Maximum allowable variations: The difference between the weight 
indication due to the disturbance and the indication without the 
disturbance either must not exceed 1 d or the EUT must detect and 
act upon a significant fault.
    Conduct of the test:
    Preconditioning: None required.
    Test equipment:
    A test generator suitable to reduce the amplitude of the AC 
voltage from the mains. The test generator must be adjusted before 
connecting the EUT.
    Load cell simulator, if applicable.
    Condition of EUT:
    Normal power supplied and ``on'' for a time period equal to or 
greater than the warm-up time specified by the manufacturer.
    Adjust the EUT as close to zero indication as practicable prior 
to the test.
    Test sequence:
    Stabilize all factors at nominal reference conditions.
    Totalize as indicated above and record the following data:

date and time,
temperature,
relative humidity,
power supply voltage,
test load,
indications,
errors,
functions performance.

    Interrupt the power supply to zero voltage for a period equal to 
8-10 ms. During interruption observe the effect on the EUT and 
record, as appropriate.
    Repeat the above 4 additional times making sure that there is a 
10 second interval between repetitions. Observe the effect on the 
EUT.
    Reduce the power supply to 50 percent of nominal voltage for a 
period equal to 16-20 ms. During reduction observe the effect on the 
EUT and record, as appropriate.
    Repeat the above 4 additional times making sure that there is a 
10 second interval between repetitions. Observe the effect on the 
EUT.

A.3.5  Bursts

    Test method: Electrical bursts.
    Object of the test: To verify compliance with the provisions in 
this manual under conditions where electrical bursts are 
superimposed on the mains voltage.
    Reference to standard: See Bibliography (5)
    Test procedure in brief:
    The test consists of subjecting the EUT to bursts of double 
exponential wave-form transient voltages. Each spike must have a 
rise in time of 5 ns and a half amplitude duration of 50 ns. The 
burst length must be 15 ms, the burst period (repetition time 
interval) must be 300 ms. This test is conducted during a weighing 
operation consisting of:
    For belt scales--while totalizing at the maximum flow rate at 
least the min (or a time sufficient to complete 
the test).
    For platform, hanging, and automatic hopper scales--tested with 
one small test load or simulated load.
    Test severities: Amplitude (peak value) 1000 V.
    Number of test cycles: At least 10 positive and 10 negative 
randomly phased bursts must be applied at 1000 V.
    Maximum allowable variations: The difference between the 
indication due to the disturbance and the indication without the 
disturbance either must not exceed the values given in section 
T.5.5, or the EUT must detect and act upon a significant fault.
    Conduct of the test: Refer to the IEC Publication referenced in 
Bibliography (5) for detailed test procedures.
    Supplementary information to the IEC test procedures:
    Test equipment:
    A burst generator having an output impedance of 50 ohms.
    Test conditions:
    The burst generator must be adjusted before connecting the EUT. 
The bursts must be coupled to the EUT both on common mode and 
differential mode interference.
    Condition of EUT: Normal power supplied and ``on'' for a time 
period equal to or greater than the warm-up time specified by the 
manufacturer.
    Adjust the EUT as close to a zero indication as practicable 
prior to the test.
    Test sequence:
    Stabilize all factors at nominal reference conditions.
    Conduct the test as indicated above and record the following 
data:

date and time,
temperature,
relative humidity,
test load,
indication,
errors,
functions performance.

    Subject the EUT to at least 10 positive and 10 negative randomly 
phased bursts at the 1000 V mode. Observe the effect on the EUT and 
record, as appropriate.
    Stabilize all factors at nominal reference conditions.
    Repeat the test and record the test data as indicated above.

A.3.6  Electrostatic Discharge

    Test method: Electrostatic discharge (ESD).
    Object of the test: To verify compliance with the provisions of 
this manual under conditions of electrostatic discharges.
    Reference to standard: See Bibliography (6)
    Test procedure in brief:
    A capacitor of 150 pF is charged by a suitable DC voltage 
source. The capacitor is then discharged through the EUT by 
connecting one terminal to ground (chassis) and the other via 150 
ohm to surfaces which are normally accessible to the operator. This 
test is conducted during a weighing operation consisting of:
    For belt scales--while totalizing at the maximum flow rate at 
least the min (or a time sufficient to complete 
the test).
    For platform, hanging, and automatic hopper scales--test with 
one small test load or simulated load.
    Test severities:
    Air Discharge: up to and including 8 kV.
    Contact Discharge: up to and including 6 kV.

[[Page 32578]]

    Number of test cycles: At least 10 discharges must be applied at 
intervals of at least 10 seconds between discharges.
    Maximum allowable variations:
    The difference between the indication due to the disturbance and 
the indication without the disturbance either must not exceed the 
values indicated in section T.5.5, or the EUT must detect and act 
upon a significant fault.
    Conduct of the test: Refer to the IEC Publication mentioned in 
Bibliography (4) for detailed test procedures.
    Supplementary information to the IEC test procedures
    Preconditioning: None required.
    Condition of EUT:
    The EUT without a ground terminal must be placed on a grounded 
plate which projects beyond the EUT by at least 0.1 m on all sides. 
The ground connection to the capacitor must be as short as possible.
    Normal power supplied and ``on'' for a time period equal to or 
greater than the warm-up time specified by the manufacturer. Power 
is to be ``on'' for the duration of the test.
    The EUT must be operating under standard atmospheric conditions 
for testing.
    Adjust the EUT as close to a zero indication as practicable 
prior to the test.
    Test sequence:
    Stabilize all factors at nominal reference conditions.
    Conduct test as indicated above and record and the following 
data:

date and time,
temperature,
relative humidity,
power supply voltage,
test load,
indication,
errors,
functions performance.

    Approach the EUT with the discharge electrode until discharge 
occurs and then remove it before the next discharge. Observe the 
effect of the discharge on the EUT and record, as appropriate.
    Repeat the above step at least 9 more times, making sure to wait 
at least 10 seconds between successive discharges. Observe the 
effect on the EUT and record as appropriate.
    Stabilize all factors at nominal reference conditions.
    Repeat the test and record the test data as indicated above.

A.3.7  Electromagnetic Susceptibility

    Test method: Electromagnetic fields (radiated).
    Object of the test:
    To verify compliance with the provisions in this manual under 
conditions of electromagnetic fields.
    Reference to standard: See Bibliography (7)
    Test procedure in brief:
    The EUT is placed in an EMI chamber and tested under normal 
atmospheric conditions. This test is first conducted at one load in 
a static mode and the frequencies at which susceptibility is evident 
are noted. Then tests are conducted at the problem frequencies, if 
any, during a weighing operation consisting of:
    For belt scales--while totalizing at the maximum flow rate at 
least the  (or a time 
sufficient to complete the test). It is then exposed to 
electromagnetic field strengths as specified in the ``Test 
severities'' section below.
    For platform, hanging, and automatic hopper scales--tested with 
one small test load.
    The field strength can be generated in various ways:
    1. the strip line is used at low frequencies (below 30 MHz or in 
some cases 150 MHz) for small EUT's;
    2. the long wire is used at low frequencies (below 30 MHz) for 
larger EUT's;
    3. dipole antennas or antennas with circular polarization placed 
1 m from the EUT are used at high frequencies.
    Under exposure to electromagnetic fields the EUT is again tested 
as indicated above.
    Test severities: Frequency range: 26--1000 MHz
    Field strength: 3 V/m
    Modulation: 80 percent AM, 1 kHz sine wave
    Number of test cycles: Conduct test by continuously scanning the 
specified frequency range while maintaining the field strength.
    Maximum allowable variations: The difference between the 
indication due to the disturbance and the indication without the 
disturbance either must not exceed the values given in this manual, 
or the EUT must detect and act upon a significant fault.
    Conduct of the test: Refer to the IEC Publication referenced in 
Bibliography (7) for detailed information on test procedures.
    Supplementary information to the IEC test procedures.
    Test conditions:
    The specified field strength must be established prior to the 
actual testing (without the EUT in the field). At least 1 m of all 
external cables must be included in the exposure by stretching them 
horizontally from the EUT.
    The field strength must be generated in two orthogonal 
polarizations and the frequency range scanned slowly. If antennas 
with circular polarization, i.e., log-spiral or helical antennas, 
are used to generate the electromagnetic field, a change in the 
position of the antennas is not required. When the test is carried 
out in a shielded enclosure to comply with international laws 
prohibiting interference to radio communications, care needs to be 
taken to handle reflections from the walls. Anechoic shielding might 
be necessary.
    Condition of EUT: Normal power supplied and ``on'' for a time 
period equal to or greater than the warm-up time specified by the 
manufacturer. Power is to be ``on'' for the duration of the test. 
The EUT must be operating under standard atmospheric conditions for 
testing.
    Adjust the EUT as close to a zero indication as practicable 
prior to the test.
    Test sequence: Stabilize all factors at nominal reference 
conditions.
    Conduct the test as indicated above and record the following 
data:

date and time,
temperature,
relative humidity,
test load,
indication,
errors,
functions performance.

    Following the IEC test procedures, expose the EUT at zero load 
to the specified field strengths while slowly scanning the three 
indicated frequency ranges.
    Observe and record the effect on the EUT.
    Repeat the test as indicated above and observe and record the 
effect.
    Stabilize all factors at nominal reference conditions.
    Repeat the test and record the test data as indicated above.

Bibliography

    Below are references to Publications of the International 
Electrotechnical Commission (IEC), where mention is made in the 
tests in Annex A.
    1. IEC Publication 68-2-1 (1974): Basic environmental testing 
procedures. Part 2: Tests, Test Ad: Cold, for heat dissipating 
equipment under test (EUT), with gradual change of temperature.
    IEC Publication 68-2-2 (1974): Basic environmental testing 
procedures, Part 2: Tests, Test Bd: Dry heat, for heat dissipating 
equipment under test (EUT) with gradual change of temperature.
    IEC Publication 68-3-1 (1974): Background information, Section 
1: Cold and dry heat tests.
    2. IEC Publication 68-2-56 (1988): Environmental testing, Part 
2: Tests, Test Cb: Damp heat, steady state. Primarily for equipment.
    IEC Publication 68-2-28 (1980): Guidance for damp heat tests.
    3. IEC Publication 1000-4-11 (1994): Electromagnetic 
compatibility (EMC) Part 4: Testing and measurement techniques, 
Section 11. Voltage dips, short interruptions and voltage variations 
immunity tests. Section 5.2 (Test levels--Voltage variation). 
Section 8.2.2 (Execution of the test-voltage variation).
    4. IEC Publication 1000-4-11 (1994): Electromagnetic 
compatibility (EMC) Part 4: Testing and measurement techniques, 
Section 11. Voltage dips, short interruptions and voltage variations 
immunity tests. Section 5.1 (Test levels--Voltage dips and short 
interruptions. Section 8.2.1 (Execution of the test-voltage dips and 
short interruptions) of the maximum transit speed and the range of 
operating speeds.
    5. IEC Publication 1000-4-4 (1995): Electromagnetic 
compatibility (EMC) Part 4: Testing and measurement techniques--
Section 4: Electrical fast transient/burst immunity test. Basic EMC 
publication.
    6. IEC Publication 1000-4-2 (1995): Electromagnetic 
compatibility (EMC) Part 4: Testing and measurement techniques--
Section 2: Electrostatic discharge immunity test. Basic EMC 
Publication.
    7. IEC Publication 1000-4-3 (1995): Electromagnetic 
compatibility (EMC) Part 4: Testing and measurement techniques--
Section 3: Radiated, radio-frequency electromagnetic field immunity 
test.

[FR Doc. 97-15659 Filed 6-13-97; 8:45 am]
BILLING CODE 3510-22-P