STANDARD

HB3257-2001

CaO %

31.4-32.9

Whiteness, ≥

95

Fineness(pass 45um sieve),≥%

99

Absorb water,mLH2O/20g

5.0-6.5

Arsenic as As, ≤%

0.0003

Chloride as Cl, ≤ %

0.03

Loss on ignition,%

25.0-26.5

Heavy metal as Pb, ≤ %

0.003

PH value (20% solution)

6.8-8.1

Stability

Pass test

Carbonate

Pass test

Hydrochloric acid insoluble, ≤%

0.2

Sulphate as SO4-2, ≤%

0.5

Loss on drying , ≤%

0.6

Bulk density, g/ml

0.80-1.00