This standard specifies the technical requirements, test methods, inspection rules, packaging and signs of the chemical test potassium chloride. This standard applies to the inspection of the chemical reagent potassium chloride.
GB/T 646-1993 history
2011GB/T 646-2011 Chemical reagent—Potassium chloride
1993GB/T 646-1993 Chemical reagents. Potassium chloride