Eudiometer : (1) a voltmeter-like instrument in which quantity of electricity passing can be found from volume of gas produced by electrolysis. (2) Similar system to determine volume changes in a gas mixture due to combustion. (Chambers)
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}