(b) NEN-EN-ISO 6468:1997 Water quality - Determination of certain organochlorine insectides, polychlorinated biphenyls and chlorobenzenes - Gas chromatographic method after liquid-liquid extraction
(b) NEN-EN-ISO 6468:1997 Water quality - Determination of certain organochlorine insectides, polychlorinated biphenyls and chlorobenzenes - Gas chromatographic method after liquid-liquid extraction