EN ISO 8381:2008

Foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
   8.1 Liquid products
   8.2 Viscous or pasty products
   8.3 Dried products
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 (informative) - Notes on procedures
Annex B (informative) - Alternative procedure using fat-extraction
        tubes with siphon or wash-bottle fittings
Bibliography

ISO 8381¦IDF 123:2008 specifies the reference method for the determination of the fat content of milk-based infant foods.The method is applicable to liquid, concentrated and dried milk-based infant foods with no, or not more than a mass fraction of 5 % (dry matter) of such added matter as starch, dextrin, vegetables, fruit and meat.The method is not applicable to products which do not dissolve completely in ammonia owing to the presence of starch or dextrin at mass fractions of more than a few percent, or to the presence of hard lumps. The method is also not applicable to products which contain free fatty acids in significant quantities. The results obtained for these products will be too low.