ITEM

Special

First

Up to standard

Whiteness %≤

95

92

90

Moisture %≤

0.2

0.4

0.5

Molysite

To show blue late

Acid soluble material %≤

1.50

2.00

4.00

soluble MATTER IN Water %≤

0.10

0.20

0.40

Acid alkalinity

Litmus paper appears neutral reaction

As %≤

0.0003

Lead %≤

0.002

PH value

7-10

Passing through D98

10µm--75µm

Bacteria each/g ≤

100 pathogenic bacteria can’t be inspected out

Asbestos mineral of amphibole

Mustn’t be found by x-ray diffraction analysis