|
Appearance
|
A clear, colourless liquid
|
|
Assay (alkalimetric)
|
30 - 32%
|
|
Arsenic (As)
|
Max 0.0001%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.002%
|
|
Copper (Cu)
|
Max 0.0005%
|
|
Sodium (Na)
|
Max 0.05%
|
|
Heavy metal (as Pb)
|
Max 0.001%
|
|
Chloride (Cl)
|
Max 0.02%
|
|
Sulphate (SO4)
|
Max 0.02%
|