质量指标

Specification

GB

FCC VII

含量（干基计），w%??????≥

Content (Dry Basis)，w%???????≥

98.0

98.0

砷（As）,mg/kg??????????≤

Arsenic (As), mg/kg ???????????≤

3

3

氟化物（以F计）,mg/kg??≤

Fluorides (F), mg/kg ???????????≤

10

10

重金属（以Pb计）mg/kg??≤

Heavy metals (Pb), mg/kg ??????≤

10

————

水不溶物,w%????????????≤

Insoluble?Substances,w% ???????≤

0.2

0.2

铅（Pb）,mg/kg??????????≤

Lead (Pb), mg/kg ?????????????≤

2

2

干燥减量,w%????????????≤

Loss on drying, w% ???????????≤

1.0

1.0

pH值,（10g/L 溶液）

pH Value,（10g/L )

4.2-4.7

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