ISO International Standard

ISO 8260|IDF 130:2008 specifies a method for the determination of the contents of individual organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in milk, evaporated milk, sweetened condensed milk, powdered milk products, butter and butterfat, cheese and other milk products.

The method is capable of determining low levels of specific OCPs down to 5 µg of OCP per kilogram of fat and levels of specific PCBs down to 2,5 µg of PCB per kilogram of fat, using capillary gas-liquid chromatography with electron-capture detection (GLC‑ECD).