Polyvinyl Chloride Resin    SG3    SG5     SG8

GB5761-1993
 
Inspection item                  Guaranteed Value
K value                                    72-71           68-66           59-55
Viscosity number    135-127        118-107        86-73
                                              
Number of impurity particles    ≤16    ≤16     ≤20

Volatile content (incl. water)%≤0.30         ≤0.40     ≤0.40

Apparent density             ≥0.45     ≥0.45     ≥0.48

Particle size ≤2.0             ≤ 2.0        ≤2.0     ≤2.0
  ≥90             ≥ 90         ≥90     ≥90

Number of Fish Eye (/400 cm2)     ≤20         ≤20      ≤30

Plasticizer absorption of 100g resin ≥26         ≥20            ≥14

Whiteness (160, after 10 min.) %   ≥80        ≥80          ≥80
VCM Residue PPM                ≤ 3        ≤ 3           ≤ 3

Packing: In 25kg net bags of PP lined with PE or paper bag.