Whiteness Index Min

94

92

92

92

N/A

88

88

Moisture Max

%

0.2

0.25

0.2%

0.25

4.0

0.5

0.5

Sodium choloride (Nacl)
 on dry basis Min

%

99.5

99.3

99

99.3

98.8

98

98

Matter insoluble in water

%

0.025

0.05

0.06*

0.025

0.10

0.2

0.5

Calcium (as Ca ++ .) Max

%

0.04

0.08

0.14

0.10

0.15

.30

0.30

Magnesium (As Mg ++ .) Max

%

0.03

0.05

0.08

0.06

0.12

0.20

0.20

Sulphate (As So4 -- ) Max

%

0.15

0.3

0.35

0.30

0.50

0.9

0.9

Iron (As Fe ++ ) Max

%

<5

<5

<5

<5

<5

<5

<5

IODINE (As I - ) Min

Ppm

N/A

N/A

30*

15

15/30

>50

>50

Hardness (PPM) 80GPL

Ppm

150

250-300

N/A

300-400

N/A

N/A

N/A

pH (10% Solution)

7.5 + 0.5

7.5 + 1.0

7.5 + 1.0

7.5 + 1.0

7.5 + 1.0

8.0 + 0. 5

8.0 + 0. 5

PARTICLE SIZE

+850 Micron Max

%

0.5

0.5%

0.5

40-50

20

Nil

Nil

+710 Micron

%

80-90

80-90

85-90

50-70

40

Nil

Nil

-150 Micron Max

%

10.0

10.0

10.0

02

N/A

80

80

PPT Silica (Sodium Silicate)

N/A

N/A

0.2-0.3

N/A

N/A

N/A

0.3-0.5