Home / Standards / GB/T 39307-2020 GB/T 39307-2020 Active Fluorescent whitening agents—Determination of shade and relative whiteness—Plastic coloring 荧光增白剂 色光和增白强度的测定 塑料着色法 Standard Type GBT ICS 71.100.01;87.060.10 CCS G55 Status 现行 Issue Date 2020-11-19 Implementation 2021-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A