标准摘要
[中文适用范围]： 规定了一种测量环境空气样品黑烟指数的方法，该方法基于通过滤纸抽取空气样品时产生的颗粒的染色效果。 附录 A 描述了吸收系数与传统黑烟单位的换算。 [外文原描述]： Specifies a method for measuring the black smoke index of an ambient air sample based on the staining effect of particles which is produced when a sample of air is drawn through a filter paper. Annex A describes conversion of absorption coefficient to traditional black smoke units.
英文名称Ambient air — Determination of a black smoke index