NF ISO 17780

NF ISO 17780

December 2015
Standard Current

Animal and vegetable fats and oils - Determination of aliphatic hydrocarbons in vegetable oils

ISO 17780:2015 specifies a method for the determination of saturated aliphatic hydrocarbons from C10 to C56 of natural origin present in vegetable oils, and for detecting the presence of mineral oil and diesel oil. The method is applicable to all types of crude and refined edible oils and fats, for concentrations of mineral oils from 50 mg/kg to 1 000 mg/kg. A rapid method for refined and virgin (or cold-pressed) oils is proposed in Annex C. This rapid method is not adapted for crude oils due to a lack of retention of triglycerides observed for some samples. A method for fat recovery from food samples by soxhlet extraction with a blend of solvents is proposed in Annex D.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2015

Number of pages

35 p.

Reference

NF ISO 17780

ICS Codes

67.200.10   Animal and vegetable fats and oils

Classification index

T60-284

Print number

1

International kinship

Sumary
Animal and vegetable fats and oils - Determination of aliphatic hydrocarbons in vegetable oils

ISO 17780:2015 specifies a method for the determination of saturated aliphatic hydrocarbons from C10 to C56 of natural origin present in vegetable oils, and for detecting the presence of mineral oil and diesel oil.

The method is applicable to all types of crude and refined edible oils and fats, for concentrations of mineral oils from 50 mg/kg to 1 000 mg/kg.

A rapid method for refined and virgin (or cold-pressed) oils is proposed in Annex C. This rapid method is not adapted for crude oils due to a lack of retention of triglycerides observed for some samples.

A method for fat recovery from food samples by soxhlet extraction with a blend of solvents is proposed in Annex D.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Réactifs
  • 6 Appareillage
  • 7 Échantillonnage
  • 8 Préparation de l'échantillon pour essai
  • 9 Mode opératoire
  • 10 Dosage des hydrocarbures susceptibles d'être d'origine minérale
  • 11 Fidélité
  • 12 Rapport d'essai
  • Annexe A Exemples de chromatogrammes
  • Annexe B Validation de la purification sur gel de silice imprégné de nitrate d'argent
  • Annexe C Mode opératoire de la méthode rapide
  • Annexe D Extraction de la matière grasse d'un échantillon alimentaire
  • Annexe E Résultats des essais interlaboratoires
  • Bibliographie
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