ISO 11050-1993 小麦粉和硬质小麦粗粒面粉 动物性杂质的测定

标准号：ISO 11050-1993
中文标准名称：小麦粉和硬质小麦粗粒面粉 动物性杂质的测定
英文标准名称：Wheat flour and durum wheat semolina; determination of impurities of animal origin
标准类型：X11;B22
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X11;B22
国际标准分类号：67.060
适用范围：The principle of the method described is hydrolysis of a test portion with a solution of hydrochloric acid at boiling point, concentration of the insoluble particles at a water/hydrocarbon interface, separation by filtration on a filter paper or membrane, microscopic examination, and counting under reflected light, of the impurities of animal origin (i.e. insects at all stages of their development, insect fragments, mites and their fragments, and rodent hairs and their fragments). Applies to wheat flours, with or without additives and having an ash yield not exceeding 0,63 % (m/m), and durum wheat semolinas.