|
Appearance
|
A clear liquid, not more than 10 Hazen unit color
|
|
Assay (alkalimetric)
|
Min 25.0%
|
|
Non - volatile matter
|
Max.0.002%
|
|
Chloride (Cl)
|
Max.0.00002%
|
|
Nitrate (NO3)
|
Max.0.00002%
|
|
Ammonium
|
Max.0.0002%
|
|
Arsenic (As)
|
Max.0.000005%
|
|
Copper (Cu)
|
Max.0.00001%
|
|
Iron (Fe)
|
Max 0.0001%
|
|
Lead (Pb)
|
Max 0.0001%
|
|
Selenium (Se)
|
Max.0.001%
|
|
Substance reducing KMnO4 (as O)
|
Max.0.0001%
|