Grade standards: KSR-57, 60, 67, KSF-65, 70, 75 K-value 56-58/59-61/66-68/64-66/69-71/74-76 Bulk density, g/l 540-630/520-620/550-610/460-560/450-530/430-510 Flowability, s/150g, max 20 Absorbed plasticizer (g) per 100g 14-20/15-22/17-23/24-30/29-35/30-36 Thermostability of film under 180C, min 30/30/45/35/40/40 Moisture and volatile matter, %, max 0.3 Residual vinyl chloride, ppm, max 1