EN ISO 16931:2009
Current
The latest, up-to-date edition.
Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009)
15-04-2009
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annex A (informative) - Chromatograms
Annex B (informative) - Results of interlaboratory tests
Bibliography
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.
| Committee |
CEN/TC 307
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| SS-EN ISO 16931 : 2009 | Identical |
| BS EN ISO 16931:2009 | Identical |
| UNI EN ISO 16931 : 2009 | Identical |
| PN EN ISO 16931 : 2010 | Identical |
| I.S. EN ISO 16931:2009 | Identical |
| SN EN ISO 16931:2009 | Identical |
| ISO 16931:2009 | Identical |
| NS EN ISO 16931 : 2009 | Identical |
| NBN EN ISO 16931 : 2009 | Identical |
| DIN EN ISO 16931:2009-08 | Identical |
| UNE-EN ISO 16931:2010 | Identical |
| NF EN ISO 16931 : 2009 | Identical |
| NEN EN ISO 16931 : 2009 | Identical |
| ISO 6492:1999 | Animal feeding stuffs — Determination of fat content |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| ISO 5555:2001 | Animal and vegetable fats and oils — Sampling |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 661:2003 | Animal and vegetable fats and oils — Preparation of test sample |
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