Freedman, Robert W.
Use of Vacutainers for collection of mine atmosphere samples Freedman, Robert W.; Craft, Robert L.; Humphrey, William G. - Washington Bureau of mines 1975 - 7 p. - RI 7999 .
MINERIA
MINING
GASES DE MINA MEDIDAS DE SEGURIDAD MINE GASES SAFETY MEASURES
622
Use of Vacutainers for collection of mine atmosphere samples Freedman, Robert W.; Craft, Robert L.; Humphrey, William G. - Washington Bureau of mines 1975 - 7 p. - RI 7999 .
MINERIA
MINING
GASES DE MINA MEDIDAS DE SEGURIDAD MINE GASES SAFETY MEASURES
622