Home / Standards / GB/T 12372-1990 GB/T 12372-1990 Active Standard method for examination of nitrogen dioxide in air of residential areas--Modified Saltzman method 居住区大气中二氧化氮检验标准方法 改进的 Saltzman 法 Standard Type GBT ICS 13.040.20 CCS C51 Status 现行 Issue Date 1990-03-22 Implementation 1991-03-01 Responsible Dept 国家卫生健康委 Drafting Unit N/A