[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: 30CFR36.49]

[Page 177]
 
                       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. 36.49  Tests of exhaust-gas dilution system.

    The performance and adequacy of the exhaust-gas dilution system 
shall be determined in tests of the complete equipment. The engine, at 
temperature equilibrium, shall be operated in normal air as prescribed 
by MSHA. Samples of the undiluted exhaust gas and of the diluted exhaust 
gas, at location(s) prescribed by MSHA, shall be considered with the 
data obtained from the engine test (see Sec. 36.43) to determine that 
the concentrations of carbon dioxide, carbon monoxide, oxides of 
nitrogen, and aldehydes in the diluted exhaust shall be below the 
required concentrations specified in Sec. 36.25(f)(1).