NF EN ISO 8968-5

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.

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Main informations

Collections

National standards and national normative documents

Publication date

May 2002

Number of pages

17 p.

Reference

NF EN ISO 8968-5

ICS Codes

67.100.10   Milk and processed milk products

Classification index

V04-221-5

Print number

1 - 07/12/2002

International kinship

ISO 8968-5:2001

European kinship

EN ISO 8968-5:2001
Sumary
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.

Replaced standards (1)
NF V04-211
December 1971
Standard Cancelled
Milk. Determination of total nitrogen content. (kjeldahl method).

Standard replaced by (1)
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.

Table of contents
  • Avant-propos
    iv
  • 1
    Domaine d'application 1
  • 2
    Références normatives 1
  • 3
    Terme et définition 1
  • 4
    Principe 2
  • 5
    Réactifs 2
  • 6
    Appareillage 2
  • 7
    Échantillonnage 2
  • 8
    Préparation de l'échantillon pour essai 3
  • 9
    Mode opératoire 3
  • 9.1
    Prise d'essai 3
  • 9.2
    Détermination directe 3
  • 9.3
    Détermination indirecte 4
  • 10
    Calcul et expression des résultats 4
  • 10.1 Calcul de la teneur en azote protéique
    4
  • 10.2 Calcul de la teneur en protéines vraies
    5
  • 11
    Fidélité 5
  • 11.1 Essai interlaboratoires
    5
  • 11.2 Répétabilité
    5
  • 11.3 Reproductibilité
    5
  • 12
    Rapport d'essai 6
  • Bibliographie
    7
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