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DIN EN ISO 7932:2005-03

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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MICROBIOLOGY OF FOOD AND ANIMAL FEEDING STUFFS - HORIZONTAL METHOD FOR THE ENUMERATION OF PRESUMPTIVE BACILLUS CEREUS - COLONY-COUNT TECHNIQUE AT 30 DEGREE C

Available format(s)

Hardcopy , PDF

Superseded date

30-11-2020

Superseded by

DIN EN ISO 7932:2020-11

Published date

01-01-2005

€99.44
Excluding VAT

Foreword
0 Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Dilution fluid, culture media and reagents
6 Apparatus and glassware
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 Test portion, initial suspension and dilutions
   9.2 Inoculation and incubation
   9.3 Counting of the colonies
   9.4 Confirmation
10 Expression of results
   10.1 Count of presumptive B. cereus colonies
   10.2 No colonies
   10.3 Precision
11 Test report
Annex A (normative) Confidence limits for the estimation of
        small numbers of colonies
Annex B (informative) Results of interlaboratory test
Bibliography

Describes a horizontal method for the enumeration of viable presumptive Bacillus cereus by means of the colony-count technique at 30 degree C.

DocumentType
Standard
Pages
17
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Superseded
SupersededBy

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 6887-1:2017 Microbiology of the food chain — Preparation of test samples, initial suspension and decimal dilutions for microbiological examination — Part 1: General rules for the preparation of the initial suspension and decimal dilutions
ISO 7218:2007 Microbiology of food and animal feeding stuffs — General requirements and guidance for microbiological examinations
ISO/TS 11133-2:2003 Microbiology of food and animal feeding stuffs Guidelines on preparation and production of culture media Part 2: Practical guidelines on performance testing of culture media
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

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