ISO 7208|IDF 22:2008 specifies the reference method for the determination of the fat content of liquid skimmed milk, whey and buttermilk. It is a particularly accurate gravimetric method especially for the purpose of establishing the operating efficiency of cream separators. ISO 7208|IDF 22:2008 also specifies the reference method for establishing correction tables for procedures with skimmed milk butyrometers.
GSO ISO 7208:2015 history
2015GSO ISO 7208:2015 Skimmed milk, whey and buttermilk -- Determination of fat content -- Gravimetric method (Reference method)