PART 74--COAL MINE DUST PERSONAL SAMPLER UNITS
Section
74.1 Purpose.
74.2 Sampler unit.
74.3 Specifications of sampler unit.
74.4 Tests of coal mine dust personal sampler units.
74.5 Conduct of tests; demonstrations.
74.6 Applications.
74.7 Certificate of approval.
74.8 Approval labels.
74.9 Material required for record.
74.10 Changes after certification.
74.11 Withdrawal of certification.
AUTHORITY: 30 U.S.C. 957 , 961 .
SOURCE: 35 FR 4326, Mar. 11, 1970, unless otherwise noted.
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