opacity meter definition
opacity meter means an opacity meter or smoke meter approved in accordance with section 30.3.3 of ADR 30/00;
opacity meter means an Instrument for continuous measurement of the light absorption coefficient of the exhaust gases emitted by vehicles;
opacity meter means an instrument used to measure the opacity of smoke particles by means of the light absorption principle;
More Definitions of opacity meter
opacity meter means an instrument that is capable of measuring the opacity of the smoke emanating from a motor vehicle. The instrument shall be approved by the Department for this use in accordance with this Regulation as an official test instrument.
opacity meter means an optical instrument which THAT is designed to measure the opacity of diesel exhaust gases. by measuring the full flow of exhaust gases which pass through the optical unit.