EN ISO 21415-1:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 General
   9.2 Test portion
   9.3 Dough preparation and leaving it to rest
   9.4 Washing out
   9.5 Removal of excess washing solution
   9.6 Determination of the mass of the wet gluten
   9.7 Number of determinations
10 Calculation and expression of results
11 Precision
   11.1 Interlaboratory tests
   11.2 Repeatability
   11.3 Reproducibility
12 Test report
Annex A (normative) - Gluten press
Annex B (normative) - Preparation of ground wheat
Annex C (informative) - Results of an interlaboratory
        test
Bibliography

ISO 21415-1:2006 specifies a manual washing out method for the determination of the wet gluten content of wheat flour (Triticum aestivum L. and Triticum durum Desf.). This method is directly applicable to flour. It is also applicable to semolina and wheat after grinding, if their particle size distribution meets the given specification.