Home / Standards / GB/T 23670-2025 GB/T 23670-2025 Active CLT acid(2-Amino-4-methyl-5-chlorobenzenesulfonic acid) CLT酸(2-氨基-4-甲基-5-氯苯磺酸) Standard Type GBT ICS 71.100.01;87.060.10 CCS G56 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