Home / Standards / GB/T 45795-2025 GB/T 45795-2025 Active Determination of PM10/PM2.5 mass concentration in atmosphere—Light scattering method 大气颗粒物PM10、PM2.5质量浓度观测 光散射法 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2025-05-30 Implementation 2025-12-01 Responsible Dept 中国气象局 Drafting Unit N/A