Bulletin of the IDF N° 439/ 2009: Interlaboratory Collaborative Studies on Reference Method ISO 1211 | IDF 1 for the Determination of the Fat Content in Cow Milk, Sheep Milk and Goat Milk

Publication description

The gravimetric reference method for determination of fat in milk (International Standard ISO 1211| IDF 1) was subjected to new international interlaboratory studies to establish its precision characteristics (reproducibility, R, and repeatability, r). In these new studies the method was applied to cow whole milk, cow reduced fat milk and cow skimmed milk and to milk from sheep and goats. This paper is the report of the interlaboratory studies.

Keywords: cow milk, sheep milk, goat milk, fat determination, Roese-Gottlieb, precision, interlaboratory study