Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 30 - Mineral Resources |
Chapter I - Mine Safety and Health Administration, Department of Labor |
SubChapter B - Testing, Evaluation, and Approval of Mining Products |
Part 33 - Dust Collectors for Use in Connection With Rock Drilling in Coal Mines |
Subpart B - Dust-Collector Requirements |
§ 33.22 - Mode of use.
Latest version.
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§ 33.22 Mode of use.
(a) A unit or system may be designed for use in connection with percussion and/or rotary drilling in any combination of the following drilling positions:
(1) Vertically upward,
(2) upward at angles to the vertical,
(3) horizontally, and
(4) downward.
(b) Dust-collector units may be designed for use with specific drilling equipment or at specific drilling speeds.