Home / Standards / GB/T 21782.1-2025 GB/T 21782.1-2025 Active Coating powders—Part 1: Determination of particle size distribution by sieving 粉末涂料 第1部分:用筛分法测定粒度分布 Standard Type GBT ICS 87 CCS G50 Status 现行 Issue Date 2025-10-05 Implementation 2026-02-01 Responsible Dept 国家标准委 Drafting Unit N/A