ISO 11050:1993 Preview

Wheat flour and durum wheat semolina -- Determination of impurities of animal origin

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.


General information

  • Status :  Published
    Publication date : 1993-07
  • Edition : 1
    Number of pages : 11
  • :
    ISO/TC 34/SC 4
    Cereals and pulses
  • 67.060
    Cereals, pulses and derived products

Buy this standard

Format Language
PDF
Paper
  • CHF58

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information

 Subscribe