|
Appearance
|
Clear colorless liquid
|
|
Assay
|
0.3 - 0.4%
|
|
Sulphate (SO4)
|
Max 0.0002%
|
|
Residue on ignition
|
Max 0.002%
|
|
Substance reducing KMnO4 (as O)
|
Passes test
|
|
Carbon dioxide (CO2)
|
Max 0.002%
|
|
Chloride (Cl)
|
0.00002%
|
|
Nitrate (NO3)
|
0.0002%
|
|
Phosphate (PO4)
|
Max 0.002%
|
|
Heavy metal
|
Max 0.00005%
|
|
Iron (Fe)
|
Max 0.00002%
|