Status : Published (Under review)

This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
Format Language
PDF
Paper
  • CHF63
Convert Swiss francs (CHF) to your currency

Abstract

ISO 16931:2009 specifies a method using high-performance size-exclusion chromatography (HPSEC) to determine the contents, as mass fractions, of polymerized triacylglycerols (PTAGs) in oils and fats which contain at least 3 % (from peak areas) of these polymers. PTAGs (strictly speaking dimeric and oligomeric triacylglycerols) are formed during the heating of fats and oils, and thus, the method serves to assess the thermal deterioration of frying fats after use.

This method is applicable to frying fats and fats and oils that have been thermally treated, provided that the content of PTAGs is at least 3 %. It can also be applied to the determination of polymers in fats for animal feedstuffs, although in this case, the extraction method used can have an influence on the result.

Standard first page

Read sample 

Preview this standard in our Online Browsing Platform (OBP)

General information

  • Status
     : Published
    Publication date
     : 2009-04
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 9
  • Technical Committee :
    ISO/TC 34/SC 11
    ICS :
    67.200.10 
  • RSS updates

Life cycle

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)

  2. Store
  3. Standards catalogue
  4. TC
  5. ISO/TC 34/SC 11
  6. ISO 16931:2009