[Code of Federal Regulations]

[Title 40, Volume 31]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR1065.267]



[Page 708-709]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 1065_ENGINE-TESTING PROCEDURES--Table of Contents

 

                    Subpart C_Measurement Instruments

 

Sec.  1065.267  Gas chromatograph.



    (a) Application. You may use a gas chromatograph to measure 

CH4 concentrations of diluted exhaust for batch sampling. 

While you may also use a nonmethane cutter to measure



[[Page 709]]



CH4, as described in Sec.  1065.265, use a reference 

procedure based on a gas chromatograph for comparison with any proposed 

alternate measurement procedure under Sec.  1065.10.

    (b) Component requirements. We recommend that you use a gas 

chromatograph that meets the specifications in Table 1 of Sec.  

1065.205, and it must also meet the linearity verification in Sec.  

1065.307.



                       NOX Measurements