Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 6231-1980
Scope
This standard is applicable to the detection of potassium in water. The minimum detectable concentration using the photometric method is 0.5 mg of potassium at a light path of 15 cm (when taking 100 ml of sample).
CNS 6231-1980 history
1980CNS 6231-1980 Method of Test for Potassium in Water(Colorimetric Method)