Home / Standards / GB/T 33070-2016 GB/T 33070-2016 Active 1-Vinyl-2-pyrrolidinone homopolymer for industrial use 工业用聚N-乙烯基吡咯烷酮 Standard Type GBT ICS 71.080.80 CCS G32 Status 现行 Issue Date 2016-10-13 Implementation 2017-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A