NF EN ISO 11816-1

NF EN ISO 11816-1

December 2013
Standard Current

Milk and milk products - Determination of alkaline phosphatase activity - Part 1 : fluorimetric method for milk and milk-based drinks

ISO 11816-1|IDF 155-1:2013 specifies a fluorimetric method for the determination of alkaline phosphatase (ALP, EC 3.1.3.1) activity in raw and heat-treated whole milk, semi-skimmed milk, skimmed milk and flavoured milks. This method is applicable to milk and milk-based drinks from cows, sheep and goats. It is also applicable to milk powder after reconstitution.The instrument can read activities up to 7 000 milliunits per litre (mU/l). If the activity is higher than 7 000 mU/l, it is diluted with alkaline phosphatase-free milk so as to obtain a measurement not higher than 7 000 mU/l.

See more
View the extract
Main informations

Collections

National standards and national normative documents

Publication date

December 2013

Number of pages

23 p.

Reference

NF EN ISO 11816-1

ICS Codes

67.100.10   Milk and processed milk products

Classification index

V04-054-1

Print number

1 - 12/12/2013

International kinship

ISO 11816-1:2013

European kinship

EN ISO 11816-1:2013
Sumary
Milk and milk products - Determination of alkaline phosphatase activity - Part 1 : fluorimetric method for milk and milk-based drinks

ISO 11816-1|IDF 155-1:2013 specifies a fluorimetric method for the determination of alkaline phosphatase (ALP, EC 3.1.3.1) activity in raw and heat-treated whole milk, semi-skimmed milk, skimmed milk and flavoured milks. This method is applicable to milk and milk-based drinks from cows, sheep and goats. It is also applicable to milk powder after reconstitution.

The instrument can read activities up to 7 000 milliunits per litre (mU/l). If the activity is higher than 7 000 mU/l, it is diluted with alkaline phosphatase-free milk so as to obtain a measurement not higher than 7 000 mU/l.

Replaced standards (1)
NF EN ISO 11816-1
July 2006
Standard Cancelled
Milk and milk products - Determination of alkaline phosphatase activity - Part 1 : fluorimetric method for milk and milk-based drinks

ISO 11816-1|IDF 155-1:2006 specifies a fluorimetric method for the determination of alkaline phosphatase (ALP, EC 3.1.3.1) activity in pasteurised whole milk, semi-skimmed milk, skimmed milk and flavoured milks. The method is applicable for milk from cows, sheep and goats, and milk-based drinks. The method is also suitable for the determination of high alkaline phosphatase activity in raw milk and heat-treated milk with activities of more than 2 000 mU/l after dilution of the sample as specified.

Table of contents
  • Avant-propos
    v
  • 1 Domaine d'application
    1
  • 2 Termes et définitions
    1
  • 3 Principe
    1
  • 4 Réactifs
    2
  • 5 Appareillage
    3
  • 6 Échantillonnage
    3
  • 7 Préparations
    3
  • 7.1 Lait exempt de phosphatase alcaline
    3
  • 7.2 Préparation de l'échantillon pour essai
    4
  • 8 Mode opératoire
    4
  • 8.1 Vérification des performances de l'appareillage
    4
  • 8.2 Contrôles de réactifs pour évaluer l'adéquation du substrat de travail prêt à l'emploi
    5
  • 8.3 Étalonnage
    5
  • 8.4 Détermination
    6
  • 8.5 Contrôles relatifs aux échantillons pour essai
    7
  • 9 Calcul et expression des résultats
    7
  • 9.1 Rapport d'étalonnage
    7
  • 9.2 Calcul
    8
  • 9.3 Expression des résultats d'essai
    8
  • 10 Fidélité
    8
  • 10.1 Essai interlaboratoires
    8
  • 10.2 Répétabilité
    9
  • 10.3 Reproductibilité
    9
  • 11 Rapport d'essai
    9
  • Annexe A (informative) Essais interlaboratoires
    10
  • Bibliographie
    13
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ