Norm

NPR-ISO/TS 17764-1:2003 en

Diervoeders - Bepaling van het gehalte van vetzuren - Deel 1: Voorbereiding van methylesters

  • Deze norm is ingetrokken sinds 01-11-2006

31,57

Over deze norm

Status Ingetrokken
Aantal pagina's 6
Commissie Diervoeder
Gepubliceerd op 01-01-2003
Taal Engels
ISO/TS 17764 specifies methods for the quantitative determination of individual fatty acids and of the sum of the fatty acids (elutable fatty acids). This part of ISO/TS 17764 specifies two methods for preparing the methyl esters of fatty acids of animal and vegetable fats, oils and fatty acid mixtures for raw materials for compound animal feeds, and fatty acids originating from fat extracts of animal feeding stuffs, including fats and fatty acid mixtures containing butyric acid. The general method, the boron trifluoride (BF3) method, is concerned with the preparation of methyl esters of fatty acids with six or more C atoms, originating from fats, oils and free fatty acids. The KOH/HCl method is concerned with the preparation of methyl esters of fatty acids with four or more C atoms. This method can also be used for the quantitative determination of fatty acids with a chain length shorter than ten C atoms in free fatty acid mixtures. The methyl esters produced can be used for gas-liquid chromatography (GLC).

Details

ICS-code 65.120
Nederlandse titel Diervoeders - Bepaling van het gehalte van vetzuren - Deel 1: Voorbereiding van methylesters
Engelse titel Animal feeding stuffs - Determination of the content of fatty acids - Part 1: Preparation of methyl esters
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