fire-damp

fire-damp

Methane, CH4, found in coal mines.
References in classic literature ?
It was labour, whose practical difference from the other forms of labour consisted in the nature of its risk, which did not lie in ankylosis, or lead poisoning, or fire-damp, or gritty dust, but in what may be briefly defined in its own special phraseology as "Seven years hard." Chief Inspector Heat was, of course, not insensible to the gravity of moral differences.
If they were not killed in the first blast, they could have died in the deadly fire-damp gas or the fires that raged after.
The new unit is certified for use in hazardous fire-damp areas.
The reason is that the safety lamp is first and foremost a methane detector; the colour and shape of the flame indicates how much methane or 'fire-damp' is present in the atmosphere.