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Black damp is an atmosphere in which a flame lamp will not burn, usually because of an excess of carbon dioxide (CO2) and nitrogen in the air.
It was an old safety flame lamp, a silver relic still smudged with black soot and covered in dents — an early replacement for the gruesome practice of lowering birds into mines to see if there was sufficient air.
Consequently, a flame safety lamp must be kept burning within easy view of the workers, or frequent inspections must be made, using a flame lamp or other form of warning device.
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In the old days, they used flame lamps and a canary, but now we have multigas meters that check for several gases at a time.
Candles, lanterns, flame lamps, and sconces are for outdoor use only.
The working conditions of AAS are listed below: Model: Perkin-Elmer AAS-700, Carrier Gas: Acetylene gas, Oxidant: Compressed air, Flame temperature: 2500 °C, Lamp: Hollow cathode lamp (HCL), Lamp type: Neon HCL, Gas flow: 2.5 L/min, Air flow: 5 L/min, and Gas pressure: 80 PSI.
The open-flame oil lamp on a miner's cap is thought to have either ignited a pocket of gas or the thick coal dust in the air.
Yeung Faï uses the flame from his lamp to light Pencolé's lamp.
As first used on the English stage in the latter part of the 17th century, footlights consisted of open-flame oil lamps with floating wicks.
The environmental effects of a billion open-flame kerosene lamps are immense: Burning kerosene adds tons of soot and greenhouse gases to the atmosphere, which contributes greatly to climate change.
They were telling him that the flame in the lamp was better.
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