Browse TRAIL Inventories

Freon 113 as a test material for chemical cartridge respirators

Evaluation of chemical-cartridge respirator face fit

Respirator filter penetration using sodium chloride aerosol

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

Development of two new oxygen self-rescuers.

CO₂-absorption characteristics of mine rescue breathing apparatus


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