TEST ITEMS

STANDARD PARAMETERS

Assay

98.5% min

P2O5

40.5%-42.0%

CaO

32.0% min

Whiteness

95.0% min

PH (20%)

7.0-8.1

Particle size (325 mesh)
(200 mesh)

99% min
99.95% min

Apparent density

0.8-1.0g/ml

Water adsorption

5.0-6.5ml/20g

Stability

Pass test

Fast test of stability of fluorine ion

0.9% min

Loss on ignition

25.0%-26.5%

Loss on drying

0.60% max

Heavy metals (as Pb)

0.002% max

Fluoride

0.005% max

Chloride

0.03% max

Sulfate

Pass test

Sulfide

Pass test

As

0.0003% max

Carbonate

Pass test

Fe

0.005% max

Insoluble in HCl

0.2% max

Total plate count

100cfu/g max

Total molds

500cfu/g max