ISO 6866:1985 Preview

Animal feeding stuffs -- Determination of free and total gossypol

The method is applicable to cottonseed and cottonseed meals and cakes. The method consists in extracting of the compound in the presence of 3-aminopropane-1-ol, either with a mexture of 2-propanol and hexane for the determination of free gossypol or with dimethylformamide for the determination of total gossypol. Conversion to gossypol-dianiline using aniline, and measurement of the absorbance at the wavelength of maximum absorbance (between 435 and 445 nm).


General information

  • Current status : Published
    Publication date : 1985-11
  • Edition : 1
    Number of pages : 3
  • :
    ISO/TC 34/SC 10
    Animal feeding stuffs
  • 65.120
    Animal feeding stuffs

Buy this standard

Format Language
PDF
Paper
  • CHF38

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)

Life cycle

A standard is reviewed every 5 years



Revisions / Corrigenda