2004DIN EN ISO 16588:2004-02 Water quality - Determination of six complexing agents - Gas-chromatographic method (ISO 16588:2002); German version EN ISO 16588:2003
2004DIN EN ISO 16588:2004 Water quality - Determination of six complexing agents - Gas-chromatographic method (ISO 16588:2002); German version EN ISO 16588:2003
1970DIN EN ISO 16588 E:2003-06 Gas chromatography method for determination of hexacomplex reactants in water quality (draft)