NF EN ISO 8968-4

NF EN ISO 8968-4

June 2016
Standard Current

Milk and milk products - Determination of nitrogen content - Part 4 : determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

ISO 8968-4|IDF 20-4:2016 specifies a method for the direct and indirect determination of the protein nitrogen content of liquid, whole or skimmed milk.

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Collections

National standards and national normative documents

Publication date

June 2016

Number of pages

23 p.

Reference

NF EN ISO 8968-4

ICS Codes

67.100.10   Milk and processed milk products

Classification index

V04-221-4

Print number

1

International kinship

ISO 8968-4:2016

European kinship

EN ISO 8968-4:2016
Sumary
Milk and milk products - Determination of nitrogen content - Part 4 : determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

ISO 8968-4|IDF 20-4:2016 specifies a method for the direct and indirect determination of the protein nitrogen content of liquid, whole or skimmed milk.

Replaced standards (2)
NF EN ISO 8968-4
May 2002
Standard Cancelled
Milk - Determination of nitrogen content - Part 4 : determination of non-protein nitrogen content

ISO 8968-4|IDF 20-4:2001 specifies a method for the determination of the non-protein nitrogen content of liquid milk, whole or skimmed.

NF EN ISO 8968-5
May 2002
Standard Cancelled
Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content

ISO 8968-5|IDF 20-5:2001 specifies a method for the direct determination of the protein-nitrogen content of liquid milk, whole or skimmed. An alternative indirect method using calculations is also described.

Table of contents
  • 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 - Détermination directe de la teneur en azote protéique
  • 10 Mode opératoire - Détermination indirecte de la teneur en azote protéique
  • 11 Fidélité
  • 12 Rapport d'essai
  • Annexe A Résultats d'un essai interlaboratoires - Estimation des données de fidélité concernant les méthodes de détermination directe et indirecte de la teneur en protéines vraies
  • Bibliographie
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