Home / Standards / GB/T 45271-2025 GB/T 45271-2025 Active Man-made fiber—Determination of catechins content—High performance liquid chromatography 化学纤维 儿茶素含量的测定 高效液相色谱法 Standard Type GBT ICS 59.060.20 CCS W50 Status 现行 Issue Date 2025-02-28 Implementation 2025-09-01 Responsible Dept 国家标准委 Drafting Unit N/A