NF EN ISO 21187

January 2006

Standard Cancelled

Milk - Quantitative determination of bacteriological quality - Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results

ISO 21187|IDF 196:2004 gives guidelines for the establishment of a conversion relationship between the results of a routine method and an anchor method, and its verification for the quantitative determination of the bacteriological quality of milk.

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Main informations

Collections

National standards and national normative documents

Publication date

January 2006

Number of pages

24 p.

Reference

NF EN ISO 21187

ICS Codes

07.100.30 Food microbiology

67.100.01 Milk and milk products in general

Classification index

V04-055

Print number

1 - 08/12/2005

International kinship

ISO 21187:2004

European kinship

EN ISO 21187:2005

Sumary

Milk - Quantitative determination of bacteriological quality - Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results

Standard replaced by (1)

NF EN ISO 21187

March 2021

Standard Current

Milk - Quantitative determination of microbiological quality - Guidance for establishing and verifying a conversion relationship between results of an alternative method and anchor method results

This document gives guidelines for the establishment of a conversion relationship between the results of an alternative method and an anchor method, and its verification for the quantitative determination of the microbiological quality of milk. NOTE The conversion relationship can be used a) to convert results from an alternative method to the anchor basis or b) to convert results/limits, expressed on an anchor basis, to results in units of an alternative method.

Table of contents

Avant-propos
iv
Introduction
vi
1 Domaine d'application
1
2 Références normatives
1
3 Termes et définitions
1
4 Principes
2
4.1 Conditions préalables
2
4.2 Mise en place de l'organisation
3
5 Établissement d'une relation de conversion
3
5.1 Prise en compte des facteurs ayant une incidence et de leurs conséquences
3
5.2 Échantillons pour essai
5
5.3 Traitement préalable des échantillons pour essai
6
5.4 Analyse
7
5.5 Calcul
7
5.6 Expression des résultats
8
6 Vérification d'une relation de conversion
8
6.1 Fréquence
8
6.2 Échantillons pour essai
9
6.3 Traitement préalable des échantillons pour essai
9
6.4 Analyse
9
6.5 Calcul et vérification d'une relation de conversion
9
7 Rapport d'essai
9
Annexe A (informative) Nombre d'échantillons dans une régression linéaire
10
Bibliographie
14

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