This International Standard specifies a method for determining the content of impurities of animal ori-gin in wheat flours, with or without additives and having an ash yield not exceeding 0,63 % (m/m), and in durum wheat semolinas.
This method permits the separation and quantification of contamination of animal origin, e.g insects at all stages of their development, insect fragments, mites and their fragments, and rodent hairs and their fragments.