SN EN ISO 21567 : 2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
   4.1 General
   4.2 Enrichment in selective liquid medium
   4.3 Plating out and identification of colonies
   4.4 Biochemical and serological confirmation
5 Culture media, reagents and antisera
6 Apparatus and glassware
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 Test portion
   9.2 Enrichment
   9.3 Plating out and colony selection
   9.4 Confirmation of colonies
   9.5 Serological confirmation
10 Expression of results
11 Test report
Annex A (normative) Diagram of test procedure
Annex B (normative) Composition and preparation of culture
                    media and reagents
Annex C (normative) Description of Shigella colony morphology
                    and colour on selective agars, for both
                    identification and quality control purposes

Provides a horizontal method for the detection of Shigella species.