Items

Standards

Results

Calcium Thiosulfate （as

CaS2O3） W/W

≥24%

24.05%

Sulphur

≥12.4%

12.53%

Lead Pb Maximum

≤1ppm

<1ppm

         Mercury     Hg Maximum

≤1ppm

<1ppm

Cadmium

≤1ppm

<1ppm

Insolubles

≤0.02%

<0.02%

Fe

≤0.01

<0.01%

Specific Gravity

1.21-1.24            

                    1.235

Ph

6.5-9.0

7.5

Appearance

Clear colorless lviquid

Pass