Norm

NEN-EN-ISO 13884:2005 en

Plantaardige en dierlijke oliën en vetten - Bepaling van geïsoleerde trans isomeren door infraroodspectrometrie

48,19

Over deze norm

Status Definitief
Aantal pagina's 14
Commissie Plantaardige en dierlijke oliën en vetten
Gepubliceerd op 01-09-2005
Taal Engels
This International Standard specifies a method for the accurate determination of isolated trans bonds in natural or processed long-chain fatty acids, fatty acid esters and triglycerides with trans isomer levels W 5 %. The method is not applicable, or is applicable only with specific precautions, to .fats and oils containing high levels (over 5 %) of conjugated unsaturation (e.g. tung oil), .materials containing functional groups which modify the intensity of the C-H deformation about the trans double bond [e.g. castor oil containing ricinoleic acid or its geometrical isomer, ricinelaidic acid (12-hydroxy-9-octadecenoic acid)], .mixed triglycerides having long- and short-chain moieties (such as diacetostearin), or in general, .any materials containing constituents which have functional groups which give rise to specific absorption bands at or sufficiently close to interfere with the 966 cm -1 band of the C-H deformation of the isolated trans double bond.

Details

ICS-code 67.200.10
Nederlandse titel Plantaardige en dierlijke oliën en vetten - Bepaling van geïsoleerde trans isomeren door infraroodspectrometrie
Engelse titel Animal and vegetable fats and oils - Determination of isolated trans isomers by infrared spectrometry
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