[Code of Federal Regulations]
[Title 40, Volume 30]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR1065.130]

[Page 658-659]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 1065_TEST PROCEDURES AND EQUIPMENT--Table of Contents
 
                    Subpart B_Equipment and Analyzers
 
Sec. 1065.130  Hydrocarbon analyzers.

    This section describes the requirements for flame ionization 
detectors (FIDs) used to measure hydrocarbons.
    (a) Fuel the FID with a mixture of hydrogen in helium and calibrate 
it using propane.
    (b) If you use a heated FID (required only for diesels and two-
stroke, spark-ignition engines), keep the temperature 191 11[deg] C).
    (c) Use an overflow sampling system for heated continuous FIDs. (In 
an overflow system excess zero gas or span gas spills out of the probe 
when you are doing zero or span checks.)
    (d) Do not premix the FID fuel and burner air.
    (e) Make sure the FID meets accuracy and precision specifications in

[[Page 659]]

ISO 8178-1 (incorporated by reference in Sec. 1065.1010).