Home / Standards / GB/T 21782.2-2025 GB/T 21782.2-2025 Active Coating powders—Part 2:Determination of density by gas comparison pycnometer (referee method) 粉末涂料 第2部分:气体比较比重仪法测定密度(仲裁法) 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