Name: EN ISO 21528-1:2017
Brand: CEN

Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 1: Detection of Enterobacteriaceae (ISO 21528-1:2017)

Published date

05-07-2017

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Diluent, culture media and reagent
6 Equipment and consumables
7 Sampling
8 Preparation of test sample
9 Procedure
10 Expression of results
11 Precision
12 Test report
13 Quality assurance
Annex A (informative) - Enumeration by MPN technique
Annex B (normative) - Culture media and reagents
Annex C (informative) - Method validation studies and
performance characteristics
Bibliography

ISO 21528-1:2017 specifies a method, with enrichment, for the detection of Enterobacteriaceae. It is applicable to- products intended for human consumption and the feeding of animals, and- environmental samples in the area of primary production, food production and food handling.This method is applicable- when the microorganisms sought are expected to need resuscitation by enrichment, and- when the number sought is expected to be below 100 per millilitre or per gram of test sample.A limitation on the applicability of ISO 21528-1:2017 is imposed by the susceptibility of the method to a large degree of variability (see Clause 11).NOTE Enumeration can be carried out by calculation of the most probable number (MPN) after incubation in liquid medium. See Annex A.

Committee	CEN/TC 463
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
DIN EN ISO 21528-1 E : 2017	Identical
SS-EN ISO 21528-1:2017	Identical
SN EN ISO 21528-1 : 2017	Identical
DIN EN ISO 21528-1:2017-09	Identical
ISO 21528-1:2017	Identical
I.S. EN ISO 21528-1:2017	Identical
UNE-EN ISO 21528-1:2018	Identical
NEN EN ISO 21528-1 : 2017	Identical
PN-EN ISO 21528-1:2017-08	Identical
UNI EN ISO 21528-1 : 2017	Identical
NS EN ISO 21528-1 : 2017	Identical
BS EN ISO 21528-1:2017	Identical
NF EN ISO 21528-1 : 2017	Identical

ISO 7218:2007	Microbiology of food and animal feeding stuffs General requirements and guidance for microbiological examinations
ISO 17604:2015	Microbiology of the food chain Carcass sampling for microbiological analysis
ISO 11133:2014	Microbiology of food, animal feed and water — Preparation, production, storage and performance testing of culture media
ISO 17468:2016	Microbiology of the food chain — Technical requirements and guidance on establishment or revision of a standardized reference method
ISO 13307:2013	Microbiology of food and animal feed — Primary production stage — Sampling techniques
ISO 18593:2004	Microbiology of food and animal feeding stuffs Horizontal methods for sampling techniques from surfaces using contact plates and swabs