SS 36:2013 (2022)
[Mature]
Specification for aluminium sulphate
...2 Reagents
The reagents shall be as follows:
(a) Water, de-ionised water whose usability has been confirmed through a blank test...
...(d) Manganese standard stock solution (0...
...1 mgFe/ml, 10 gMn/ml) Take both 10 ml of iron standard stock
solution (1 mgFe/ml) and 10 ml of manganese standard stock solution (0...