International Organization for Standardization (ISO)
Latest
ISO 6059:1984
Scope
Includes a procedure for ground waters, surface waters and drinking waters. The procedure is not intended for effluents and waters having a high concentration of salts. The lowest concentration that can be determined is 0,05 mmol/l.
ISO 6059:1984 history
1984ISO 6059:1984 Water quality; Determination of the sum of calcium and magnesium; EDTA titrimetric method