PVC RESIN PARAMETER NO. ITEM SG3 SG5 SG7 1 viscosity number/（ml/g） 135~127 118~107 95~87 （or K value） (72~71) (68~66) (62~60) [or degree of polymerization] [1370~1251] [1135~981] [845~741] 2 the gritty particle counts ≤ 16~30 16~30 20~40 3 Volatile matter(include water) quality score /％ ≤ 0.30~0.40 0.4 0.4 4 apparent density/（g/ml）≥ 0.45~0.42 0.48~0.45 0.50~0.45 5 screening material quality score / ％ 250 μm mesh ≤ 2.0 2.0 2.0 63 μm mesh ≥ 95~90 95~90 95~90 6 quantity for the fish eyes(amout/400cm2) ≤ 20~40 20~40 30~50 7 Plasticizer absorbing capacity of per 100 gram resin /g ≥ 26~25 19~17 12 8 Whiteness (160℃,10min)/%≥ 78~75 78~75 75~70 9 Aqueous extract Conductivity/[μs/(cm.g)] ≤ 5 ___ ___ 10 residual vinyl chloride monomer contents in polyvinyl chloride/(μg/g) ≤ 5~10 5~10 5~10 11 Application soft products such as tube,portiere,insulated material,etc. PVC profile,monofilament of PVC,PVC pipe,etc. bottle,transparent sheet,rigid injection pipe fitting,shoe material,etc.