SK EN ISO 16931:2014
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Status: Published
Gjuha: English Faqe: 21 Publikuar: 2014-12-15 Regjistri Kombëtar: Botim: |
Standardet ndërkombëtare që kanë lidhje
This standard is identical to:
EN ISO 16931:2009 CEN/TC 307
This standard is identical to:
ISO 16931:2009 ISO/TC 34/SC 11 |
Çmim: 25 €
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Titulli Shqip
Vajra dhe yndyrna bimore dhe shtazore - Përcaktimi i triacilgliceroleve të polimerizuar me kromatografi me performancë të lartë (HPSEC) (ISO 16931:2009)
Titulli Anglisht
Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009)
Scope Shqip
Asnjë informacion i shtuar.
Scope Anglisht
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.