Gasvolnmeter

Gasvolnmeter, a form of apparatus devised by Professor Lunge, which is of great use for the speedy estimation of many substances. In all cases this is effected by the measurement of the volume of gas evolved by some reaction, the advantage of the instrument over the ordinary nitrometer (q.v.), of which it is a modified form, being that all calculations for varying temperatures and barometric pressure are obviated.