30 C.F.R. § 75.403-1 Incombustible content.
Title 30 - Mineral Resources
Moisture contained in the combined coal dust, rock dust and other dusts shall be considered as a part of the incombustible content of such mixture.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart E—Combustible Materials and Rock Dusting
§ 75.403-1 Incombustible content.
