Search U.S. government technical reports digitized or harvested by TRAIL.
Respiratory protective devices approved by the Bureau of Mines as of October 16, 1958
Gas masks for respiratory protection against amines
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