Home / Standards / GB/T 39193-2020 GB/T 39193-2020 Active Ambient air—Determination of particulate matter mass concentration—Gravimetric method 环境空气 颗粒物质量浓度测定 重量法 Standard Type GBT ICS 19.120 CCS A28 Status 现行 Issue Date 2020-10-11 Implementation 2021-05-01 Responsible Dept 国家标准委 Drafting Unit N/A