30 C.F.R. § 57.20009 Tests for explosive dusts.
Title 30 - Mineral Resources
Dusts suspected of being explosive shall be tested for explosibility. If tests prove positive, appropriate control measures shall be taken.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart S—Miscellaneous
§ 57.20009 Tests for explosive dusts.

