Part 74. COAL MINE DUST SAMPLING DEVICES
- SUBPART A [§ 74.1 - § 74.2] - General
- SUBPART B [§ 74.3 - § 74.6] - Approval Requirements for Coal Mine Dust Personal Sampler Unit
- SUBPART C [§ 74.7 - § 74.11] - Requirements for Continuous Personal Dust Monitors
- SUBPART D [§ 74.12 - § 74.18] - General Requirements for All Devices