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Respiratory protective devices approved by the Bureau of Mines as of October 16, 1958

Gas masks for respiratory protection against amines

A machine-test method for measuring carbon dioxide in the inspired air of self-contained breathing apparatus

Gas masks for respiratory protection against phosphine

Respiratory protective devices approved by the Bureau of Mines as of October 1, 1965

Low-temperature performance of compressed-oxygen closed-circuit breathing apparatus

Performance of open-circuit self-contained breathing apparatus at -25⁰ F

Respirators approved by the Bureau of Mines as of May 24, 1972 :a revision of Information circular 8436


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