Home / Standards / GB/T 41489-2022 GB/T 41489-2022 Active Plastics—Polyamides—Determination of ε-caprolactam and ω-laurolactam by gas chromatography 塑料 聚酰胺 气相色谱法测定ε-己内酰胺和ω-十二内酰胺 Standard Type GBT ICS 83.080.20 CCS G32 Status 现行 Issue Date 2022-04-15 Implementation 2022-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A