Home / Standards / GB/T 21883-2025 GB/T 21883-2025 Active Fluorescent whitening agents—Determination of UV-absorption and fluoristrength 荧光增白剂 紫外吸收和荧光强度的测定 Standard Type GBT ICS 71.100.01;87.060.10 CCS G55 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A