Home / Standards / GB/T 7131-1986 GB/T 7131-1986 Active Identification of polymers by pyrolytic gas chromatography 裂解气相色谱法鉴定聚合物 Standard Type GBT ICS 71.040.40 CCS G15 Status 现行 Issue Date 1986-12-30 Implementation 1987-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A