N550 wet process carbon black granular

Grade: N220 wet process Standard: GB3778-2003 Items: Standard: Result: Iodine absorption value g/kg 121±7 120 DBP absorption value 10-3m3/kg 114±7 110 Compressed DBP absorption 10-3m2/kg 90-106 97 CTAB absorption area 10m3m2/kg 102-120 110 STSA 10m3m2/kg 106±9 102 Nitrogen absorption value 10m3m2/kg 112-126 119 Coloring strength 108-124 114 Heating loss ≤2.5 2.4 Pour density 355±40 360 300% tensile strength Mpa -2.3±1.6 -1.0 Result Up to the grade Grade: N550 wet process Standard: GB3778-2003 The date of testify: March.19th 2010 Standard: Result: Iodine absorption value g/kg 43±6 47 DBP absorption value 10-3m3/kg 121±7 121 Compressed DBP absorption 10-3m2/kg 77-93 87 CTAB absorption area 10m3m2/kg 37-47 42 STSA 10m3m2/kg 39±5 37 Nitrogen absorption value 10m3m2/kg 34-46 41 Coloring strength ------- --------- Heating loss ≤1.5 1.5 Pour density 360±40 370 300% tensile strength Mpa -0.9±1.6 -1.5 Result Up to the grade