This part of 21415 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 specification given in Table B.1.
DS/EN ISO 21415-1:2007 history
2007DS/EN ISO 21415-1:2007 Wheat and wheat flour - Gluten content - Part 1: Determination of wet gluten by a manual method