Home / Standards / GB/T 46211-2025 GB/T 46211-2025 Active Plastics—Hardeners and accelerators for epoxide resins—Determination of free acid in acid anhydride 塑料 环氧树脂固化剂和促进剂 酸酐中游离酸的测定 Standard Type GBT ICS 83.080.10 CCS G31 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A