Work-place air — Determination of mass concentration of nitrogen dioxide — Method using detector tubes for short-term sampling with direct indication
工作场所空气和空气;二氧化氮质量浓度的测定——使用检测管直接指示短期取样的方法
Specifies a procedure for the range of approximately 1 mg/m3 to 50 mg/m3. Substances which are known to have an effect on the instrument reading are indicated. The procedure is suitable for personal, breathing-zone sampling as well as for the general area sampling.