Coal Mine Health and Safety: Hearings Before the Subcommittee on Labor of the Committee on Labor and Public Welfare, United States Senate, Ninety-first Congress, First Session, on S. 355, S. 467, S. 1094, S. 1178, S. 1300, S. 1907, [and Others], Bills to Improve the Health and Safety Conditions of Persons Working in the Coal Mining Industry of the United States, Bagian 3-5U.S. Government Printing Office, 1969 |
Edisi yang lain - Lihat semua
Istilah dan frasa umum
accidents authorized representative bill bits struck bituminous coal BLACKWELL blasting Bureau of Mines carbide lamp centum Chairman Classification Source coal dust COAL MINE IGNITIONS Coal Mine Safety collieries committee continuous miner bits cutting machine bits date State Classification disease drill electric arc employees equipment examination Federal Coal feet File fire flame safety lamp frictional sparks gassy continuous miner gassy explosives gassy mines GOUGH hazards health and safety ignited gas ignited methane ignition Fatal Nonfatal IGNITIONS AND EXPLOSIONS industry inspection inspector kerf loading machine locomotive lung methane at face milligrams MULLINS National Coal Board nongassy nonpermissible O'LEARY open flame operator permissible persons pneumoconiosis pyrite rock dust Safety Act Secretary Section 209 Senator WILLIAMS Short circuit shuttle car silicosis Source of ignition Sparks created Sparks emitted subsection tion trailing cable U.S. Senate UNDERGROUND COAL ventilation violation West Virginia X-ray