Home / Standards / GB/T 21843-2008 GB/T 21843-2008 Active Plastics - Vinyl chloride homopolymer and copolymer resins - Particle size determination by mechanical sieving 塑料 氯乙烯均聚和共聚树脂 用机械筛测定粒径 Standard Type GBT ICS 83.080.20 CCS G32 Status 现行 Issue Date 2008-05-15 Implementation 2008-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A