标准摘要
[中文适用范围]： 本国际标准规定了测量不透明度和测定内燃机（不限于道路车辆）废气光吸收系数的装置的一般要求和安装。 这些仪器被称为透光烟度计。 [外文原描述]： This International Standard specifies the general requirements and the installation of apparatus for measurement of the opacity and for the determination of the light absorption coefficient of exhaust gas from internal combustion engines (not confined to road vehicles). These instruments are known as opacimeters.
英文名称Reciprocating internal combustion compression-ignition engines — Apparatus for measurement of the opacity and for determination of the light absorption coefficient of exhaust gas