[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR36.43]

[Page 174-175]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 36--APPROVAL REQUIREMENTS FOR PERMISSIBLE MOBILE DIESEL-POWERED TRANSPORTATION EQUIPMENT--Table of Contents
 
                      Subpart C--Test Requirements
 
Sec. 36.43  Determination of exhaust-gas composition.

    (a) Samples shall be taken to determine the composition of the 
exhaust gas while the engine is operated at loads and speeds prescribed 
by MSHA to determine the volume of air (ventilation) required to dilute 
the exhaust gas (see Sec. 36.45). The engine shall be at temperature 
equilibrium before exhaust-gas samples are collected or other test data 
are observed. At all test conditions the intake mixture shall contain 
1.50.1 percent, by volume, of Pittsburgh natural gas (see 
footnote 3) in the air. Test observations shall include the rate of fuel 
consumption, pressures, temperatures, and other data significant in the 
safe operation of diesel equipment.
    (b) Exhaust-gas samples shall be analyzed for carbon dioxide, 
oxygen, carbon monoxide, hydrogen, methane, nitrogen, oxides of 
nitrogen, and aldehydes, or any other constituent prescribed by MSHA.
    (c) The intake and exhaust systems shall be complete with all 
component equipment such as air cleaners, flame arresters, and exhaust 
cooling systems.

[[Page 175]]

The performance of component equipment shall be observed to determine 
whether it functions properly.

[Sched. 31, 26 FR 645, Jan. 24, 1961, as amended at 61 FR 55526, Oct. 
25, 1996]