...(23) built and tested such a system. Flrom 1972 until the present, Westinghouse, in cooperation with the Mine Safety and Health Administration (MSHA) and the Bureau of Mines, has modified and tested the system at a variety of mines. Presently, the seismic location system is...

...A04/MF A01 CSCL 081 The Center for Fire Research at the National Bureau of Standards at the request of the Mine Safety and Health Administration (MSHA) and the Bureau of Mines made an evaluation or assessment of the three different flammability tests used by MSHA for measuring...

...concentrated efforts are being made by the National Institute of Occupational Safety and Health (NIOSH) , the Mine Safety and Health Administration (MSHA) , and the Bureau of Mines (Bureau) to devise analytical methods to accurately quantify toxic emissions and control mechanisms...

...collects data on the receipts and distribution of helium. Because of the close relationship between the Mine Safety and Health Administration (MSHA) and the Bureau of Mines, special surveys are conducted for MSHA on various safety aspects of mining. Federal Bureau of Investigation,...

...collects data on the receipts and distribution of helium. Because of the close relationship between the Mine Safety and Health Administration (MSHA) and the Bureau of Mines, special surveys are conducted for MSHA on various safety aspects of mining. Federal Bureau of Investigation,...

...pilot test. Permissible; have not been tagged because approval to do so has not yet been provided by the Mine Safety and Health Administration (MSHA) and the Bureau of Mines. (See preceding discussion of this activity.) Du Pont agreed to tag 1.17 million pounds of Tovex 300...

...pilot test. Permissibles have not been tagged because approval to do so has not yet been provided by the Mine Safety and Health Administration (MSHA) and the Bureau of Mines. (See preceding discussion of this activity.) Du Pont agreed to tag 1.17 million pounds of Tovex 300...

...ignition. The Center for Fire Research (CFR) at the National Bureau of Standards (NBS) at the request of the Mine Safety and Health Administration (MSHA) and the Bureau of Mines (BOM) made an evaluation of assessment of the three different flammability tests used by MSHA for measuring...

...the required 8 ms or greater throughout the complete blast) was low for many typical blast designs. The Mine Safety and Health Administration (MSHA) and the Bureau of Mines are interested in any possible effects of delay time errors on safety. Therefore, to augment this body...