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.
Tämän julkaisun valmistelusta Suomessa vastaa SFS Suomen Standardit, puh. 09 149 9331.
Sisällysluettelo
Foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
5.6 Mixed solvent.
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
9.1 Test portion
9.2 Blank tests
9.3 Preparation of fat-collecting vessel
9.4 Determination
10 Calculation and expression of results
10.1 Calculation
10.2 Expression of results
11 Precision
11.1 Interlaboratory test
11.2 Repeatability
11.3 Reproducibility
12 Test report
Annex A Notes on procedures (informative)
Annex B Alternative procedure using fat-extraction tubes with siphon or wash-bottle fittings (informative)