Milk and milk products - Determination of copper content - Photometric method (Reference method)

ISO 5738|IDF 76:2004 specifies a reference method for the determination of the copper content of milk and milk products.The method is applicable to: a) milk, skimmed milk and buttermilk; b) evaporated milk and sweetened condensed milk; c) whole and skimmed milk powder; d) cream and butter; e) butterfat; f) ice-cream; g) hard, semi-hard and soft cheeses of various ages, and processed cheese; and h) caseins, caseinates and coprecipitates.The method is suitable for determining copper contents as low as 0,05 mg/kg in test samples of butter and butterfat.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2006

Number of pages

18 p.

Reference

NF ISO 5738

ICS Codes

67.100.01 Milk and milk products in general

Classification index

V04-153

Print number

1 - 27/10/2006

International kinship

ISO 5738:2004

Sumary

Milk and milk products - Determination of copper content - Photometric method (Reference method)

ISO 5738|IDF 76:2004 specifies a reference method for the determination of the copper content of milk and milk products.

The method is applicable to: a) milk, skimmed milk and buttermilk; b) evaporated milk and sweetened condensed milk; c) whole and skimmed milk powder; d) cream and butter; e) butterfat; f) ice-cream; g) hard, semi-hard and soft cheeses of various ages, and processed cheese; and h) caseins, caseinates and coprecipitates.

The method is suitable for determining copper contents as low as 0,05 mg/kg in test samples of butter and butterfat.

Replaced standards (1)

NF V04-153

October 1978

Standard Cancelled

Milk and milk products. Determination of the copper content. Photometric method.

Table of contents

Avant-propos
iv
Avant-propos
v
1 Domaine d'application
1
2 Références normatives
1
3 Termes et définitions
1
4 Principe
2
5 Réactifs
2
6 Appareillage
4
6.1 Verrerie
4
7 Échantillonnage
4
8 Mode opératoire
5
8.1 Préparation de l'échantillon pour essai
5
8.2 Pesée et prétraitement de la prise d'essai
7
8.3 Minéralisation
8
8.4 Développement de la coloration
8
8.5 Essai à blanc
8
8.6 Mesures photométriques
8
8.7 Nombre de déterminations
9
8.8 Courbe d'étalonnage
9
9 Calcul et expression des résultats
9
9.1 Calcul
9
9.2 Expression des résultats
9
10 Fidélité
10
10.1 Essai interlaboratoires
10
10.2 Répétabilité
10
10.3 Reproductibilité
10
11 Rapport d'essai
10
Annexe A (informative) Résultats de l'essai interlaboratoires
11
Bibliographie
12

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