[Title 40 CFR 89.313-96]
[Code of Federal Regulations (annual edition) - July 1, 1996 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)]
[Part 89 - CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD ENGINES]
[Subpart D - Emission Test Equipment Provisions]
[Sec. 89.313-96 - Initial calibration of analyzers.]
[From the U.S. Government Publishing Office]




  40
  PROTECTION OF ENVIRONMENT
  9
  1996-07-01
  1996-07-01
  false
  
  89.313-96
  Sec. 89.313-96
  
    PROTECTION OF ENVIRONMENT
    ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
    CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD ENGINES
    Emission Test Equipment Provisions
  


Sec. 89.313-96  Initial calibration of analyzers.

    (a) Warming-up time. The warming-up time should be according to the 
recommendations of the manufacturer. If not specified, a minimum of two 
hours shall be allowed for warming up the analyzers.
    (b) NDIR and HFID analyzer. The NDIR analyzer shall be tuned and 
maintained according to the instrument manufacturer's instructions. The 
combustion flame of the HFID analyzer shall be optimized in order to 
meet the specifications in Sec. 89.319-96(b)(2).
    (c) Zero setting and calibration. (1) Using purified synthetic air 
(or nitrogen), the CO, CO2, NOX, and HC analyzers shall be set 
at zero.
    (2) Introduce the appropriate calibration gases to the analyzers and 
the values recorded. The same gas flow rates shall be used as when 
sampling exhaust.
    (d) Rechecking of zero setting. The zero setting shall be rechecked 
and the procedure described in paragraph (c) of this section repeated, 
if necessary.