|
Items
|
Technical Idex
|
Method
|
|
whiteness
|
Equal or Superior
|
HG/T3063-1999
|
|
SiO2 (%)
|
≥90
|
HG/T3062-1999
|
|
Loss on heating(%) 105℃ 2h
|
3.0-8.0
|
HG/T3065-1999
|
|
Loss of ignition (Dried) 1000℃ 2h
|
3.0-6.0
|
HG/T3066-1999
|
|
PH Value
|
5.5-7.5
|
HG/T3067-1999
|
|
BET Specific surface m2/g
|
145-260
|
HG/T3073-1999
|
|
DBP Oil-absorption(cm3/g)
|
2.0-3.5
|
HG/T3072-1999
|
|
Total ironcontent(mg/kg)
|
＜500
|
HG/T3070-1999
|
Packing: 15 kg PP Bag