This International Standard gives guidance on:
a) existing standardized methods (both reference and butyrometric) for the determination of fat in various milk products;
b) the principles underlying any acid-butyrometric analysis and the main operating requirements;
c) a validation procedure for a butyrometric method in relation to the relevant reference method.
IDF 152-2009 history
2009IDF 152-2009 Milk and milk products - Determination of fat content - General guidance on the use of butyrometric methods