INDEX指标

STANDARD标准

主含量ASSAY

99-100.5%

硫酸盐SULPHATE

<=0.02%

氯化物CHLORIDE

<=0.1%

钙CA  

<=0.03%

PH

<=8.6

LOSS ON DRYING

干燥失重

<=0.2%

砷AS

<=0.0001%

HEAVY METAL (as PB)

重金属（以PB计）

<=0.0005%