[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: 30CFR90.205]

[Page 658]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 90--MANDATORY HEALTH STANDARDS--COAL MINERS WHO HAVE EVIDENCE OF THE DEVELOPMENT OF PNEUMOCONIOSIS--Table of Contents
 
                     Subpart C--Sampling Procedures
 
Sec. 90.205  Approved sampling devices; operation; air flowrate.

    (a) Sampling devices approved in accordance with part 74 (Coal Mine 
Dust Personal Sampler Units) of this title shall be operated at the 
flowrate of 2.0 liters of air per minute, or at a different flowrate as 
prescribed by the Secretary and the Secretary of Health and Human 
Services for the particular device.
    (b) Except as provided in paragraph (d) of this section, each 
approved sampling device shall be examined each shift by a person 
certified in accordance with Sec. 90.202 (Certified person; sampling) 
during the second hour after being put into operation to assure that the 
sampling device is operating properly and at the proper flowrate. If the 
proper flowrate is not maintained, necessary adjustments shall be made 
by the certified person.
    (c) Each sampling device shall be examined each shift by a person 
certified in accordance with Sec. 90.202 (Certified person; sampling) 
during the last hour of operation to assure that the sampling device is 
operating properly and at the proper flowrate. If the proper flowrate is 
not maintained, the respirable dust sample shall be transmitted to MSHA 
with a notation by the certified person on the dust data card stating 
that the proper flowrate was not maintained.
    (d) Paragraph (b) of this section shall not apply if the approved 
sampling device is being operated in a breast or chamber of an 
anthracite coal mine where the full box mining method is used.