Animal and vegetable fats and oils. Determination of polymerized triacylglycerols by high-performance size- exclusion chromatography (HPSEC) Ingestion-build-82061 • End-use-relevant preparation of test

• End-use-relevant preparation of test specimens

is given in the annexes and in IEC/TR 61340-1

5 × 118 2G1N 9 30 2

This part of IEC 60898 applies to DC circuit-breakers

1   This International Standard specifies a set of 90 graphic characters with their coded representations

Animal and vegetable fats and oils. Determination of polymerized triacylglycerols by high-performance size- exclusion chromatography (HPSEC) Ingestion-build-82061 • End-use-relevant preparation of test1 Scope This International Standard 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