Home / Standards / GB/T 31246-2025 GB/T 31246-2025 Active Water treatment chemicals—Cationic polyacrylamides 水处理剂 阳离子型聚丙烯酰胺 Standard Type GBT ICS 71.100.80 CCS G77 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A