BS ISO 21528-2:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 methods for the detection and enumeration of Enterobacteriaceae Colony-count method
Hardcopy , PDF
31-08-2017
English
23-09-2004
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Preparation of initial suspension and decimal
dilutions
4.2 Isolation
4.3 Confirmation
4.4 Calculation
5 Diluent, culture media and reagent
6 Apparatus and glassware
7 Sampling
8 Preparation of test sample
9 Procedure
9.1 General
9.2 Test portion, initial suspension and dilutions
9.3 Inoculation and incubation
9.4 Counting and selection of colonies for
confirmation
9.5 Subculturing selected colonies
9.6 Biochemical confirmation tests
10 Expression of results
11 Test report
Annex A (normative) Confidence limits for the estimation
of small numbers of colonies
Bibliography
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