Sr.
No.

Characteristics

Specifications

1

Physical Appearance

Yellowish Clear Solution

2

Assay as (NH4) HSO3% by mass.

65  to 67 %

3

Assay as So2% by mass.

42 to 43.5%

4

PH of 10% Solution.

4-5.5

5

Heavy Metal ( as Pb)

10ppm Max.

 6

Iron as Fe

10ppm Max.

7

Thiosulphate

100ppm Max.

Sr.
No.

Characteristics

Specifications

1

Physical Appearance

Yellowish Slight Hazzy Solution.

2

Assay as (NH4) HSO3% by mass.

65 % Min.

3

Assay as So2% by mass.

42% Min.

4

PH of 10% Solution.

4-5.5

5

Heavy Metal ( as Pb)

10ppm Max.

6

Iron as Fe

20ppm Max.

7

Thiosulphate

100ppm Max.