标准摘要
[中文适用范围]： 本国际标准规定了用于测定环境空气中氮氧化物质量浓度的化学发光法。 [外文原描述]： The procedure is applicable to mass concentration of nitrogen monoxide present up to approximately 12,5 mg/m3 of nitrogen dioxide up to approximately 19 mg/m3 at 25 °C and 101,3 kPa.
英文名称Ambient air — Determination of the mass concentration of nitrogen oxides — Chemiluminescence method