ISO 5738 | IDF 76: 2004 - Milk and milk products - Determination of copper content - Photometric method (Reference Method)This standard specifies a reference method for the determination of the copper content of milk and milk products. The method is applicable to: milk, skimmed milk and buttermilk; evaporated milk and sweetened condensed milk; whole and skimmed milk powder; cream and butter; butterfat; ice cream; hard, semi hard and soft cheeses of various ages, and processed cheese; and caseins, caseinates and coprecipitates. The method is suitable for determining