IDF 9-2008 PDF

Scope: This International Standard specifies the reference method for the determination of the fat content of dried milk and dried milk products. The method is also applicable to dried milk with a fat content of 40 % mass fraction or more, dried whole, dried partially skimmed, and dried skimmed milk, dried whey, dried buttermilk and dried butter serum. The method is not applicable when the powder contains hard lumps which do not dissolve in ammonia solution or free fatty acids in significant quantities. NOTE When the powder contains hard lumps which do not dissolve in ammonia solution or contains free fatty acids in significant quantities, noticeable by a distinct smell, the result of the determination will be too low. With such products, a method using the WeibulI-Bemtrop principle is suitable (see ISO 8262-311DF 124-3).

IDF 9-2008 Referenced Document

ISO 1042 Laboratory glassware - One-mark volumetric flasks
ISO 3889 Specification for Mojonnier type fat extraction bottles for milk and dairy products*， 2024-04-19 Update
ISO 4788 Laboratory glassware - Graduated measuring cylinders
ISO 835 Laboratory glassware - Graduated pipettes

2008 IDF 9-2008 Dried Milk and Dried Milk Products - Determination of Fat Content - Gravimetric Method (Reference Method)
0000 IDF 9-1987