[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: 30CFR90.204]

[Page 657-658]
 
                       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. 90.204  Approved sampling devices; maintenance and calibration.

    (a) Approved sampling devices shall be maintained as approved under 
part 74 (Coal Mine Dust Personal Sampler Units) of this chapter and 
calibrated in accordance with MSHA Informational Report IR 1240 (1996) 
``Calibration and Maintenance Procedures for Coal Mine Respirable Dust 
Samplers ``(supersedes IR 1121)'' by a person certified in accordance 
with Sec. 90.203 (Certified person; maintenance and calibration).
    (b) Approved sampling devices shall be calibrated 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 a 
particular device, before they are put into service and at intervals not 
to exceed 200 hours of operating time thereafter.
    (c) A calibration mark shall be placed on the flowmeter of each 
approved sampling device to indicate the proper position of the float 
when the sampler is operating at a flowrate of 2.0 liters of air per 
minute or other flowrate prescribed by the Secretary and the Secretary 
of Health and Human Services for the particular device. The standard to 
denote proper flow is when the lowest part of the float is tangent to 
the top of the calibration mark.
    (d) Approved sampling devices shall be tested and examined 
immediately before each sampling shift and necessary external 
maintenance shall be performed to assure that the sampling devices are 
clean and in proper working condition by a person certified in 
accordance with Sec. 90.202 (Certified person; sampling) or Sec. 90.203 
(Certified person; maintenance and calibration). This testing and 
examination shall include the following:
    (1) Testing the voltage of each battery while under actual load to 
assure the battery is fully charged. The voltage for nickel cadmium cell 
batteries shall not be lower than the product of the number of cells in 
the battery pack multiplied by 1.25. The voltage for other than nickel 
cadmium cell batteries shall not be lower than the product of the number 
of cells in the battery pack multiplied by the manufacturer's nominal 
voltage per cell value;
    (2) Examination of all components of the cyclone to assure that they 
are clean and free of dust and dirt;
    (3) Examination of the inner surface of the cyclone on the approved 
sampling device to assure that it is free of scoring;
    (4) Examination of the external tubing on the approved sampling 
device to assure that it is clean and free of leaks; and
    (5) Examination of the clamping and positioning of the cyclone body, 
vortex finder and cassette to assure that they are rigid, in alignment, 
and firmly in contact.
    (e) MSHA Informational Report IR 1240 (1996)referenced in paragraph 
(a) of this section is incorporated-by-reference. This incorporation-by-
reference was approved by the Director of the Federal Register in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be 
inspected or obtained at MSHA, Coal Mine Safety and Health, 1100 Wilson 
Blvd., Room 2424, Arlington, Virginia 22209-3939 and at each MSHA Coal 
Mine Safety and Health district and subdistrict office. Copies may be 
inspected at the Office of the Federal

[[Page 658]]

Register, 800 North Capitol Street NW., Suite 700, Washington, DC.

[45 FR 80769, Dec. 5, 1980, as amended at 64 FR 43286, Aug. 10, 1999; 67 
FR 38386, June 4, 2002]