ISO 16931:2009

Animal and vegetable fats and oils — Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC)

Publication date: 14 pri 2009

General information

Current stage: 90.20 Effective date: 15 pri 2025

Originator: ISO

Owner: ISO/TC 34/SC 11

Type: International Standard

ICS: 67.200.10

Gjuha: anglisht frëngjisht rusisht

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Statusi: Publikuar

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 16931:2001

NOW

PUBLISHED
ISO 16931:2009
90.20 Standard under periodical review
15 pri 2025

National adoptions

SSH ISO 16931:2009

DPS

Vajra dhe yndyrna bimore dhe shtazore - Përcaktimi i triacilgliceroleve të polimerizuar me kromatografi me performancë të lartë (HPSEC)

60.60 Standard published

DPS/KT 307 më tepër

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