Subpart B—Requirements for Approval of Explosives RegSenseCFR SubpartCFR RegulationsMiningSpecialized IndustriesMine Safety and Health Administration (MSHA), DOLEnglishFocus AreaUSA
§15.20 Technical requirements.§15.21 Tolerances for ingredients.§15.22 Tolerances for performance, wrapper and specific gravity.['Specialized Industries']['Mining']