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Search U.S. government technical reports digitized or harvested by TRAIL.
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8 results returnedInvestigation of electrical equipment, safety lamps, and gas detectors for safety
Portable methane-detecting appliances approved under United States Bureau of Mines standard
Accuracy and precision of several portable gas detectors
Accuracy and precision of several portable gas detectors:additional studies, a supplement to RI 7811
An analyzer for determining helium-4 in the parts-per-billion range
An improved analyzer for determining helium-4 in parts-per-billion range
Published Year
Subject
- Gas detectors (8) *
- Mine gases (4)
- Helium--Isotopes--Analysis (2)
- Coalbed methane (1)
- Flammable gases (1)
- Methane (1)
- Mine lighting--Equipment and supplies (1)
- Mine safety--Equipment and supplies (1)
- Safety lamps (1)
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