BS ISO 21528-1:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Microbiology of food and animal feeding stuffs. Horizontal methods for the detection and enumeration of Enterobacteriaceae Detection and enumeration by MPN technique with pre-enrichment
Hardcopy , PDF
08-31-2017
English
09-08-2004
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Detection of Enterobacteriaceae (see Annex A)
4.2 Enumeration by the MPN technique (see Annex B)
5 Diluent, culture media and reagent
6 Apparatus and glassware
7 Sampling
8 Preparation of test sample
9 Procedure
9.1 General
9.2 Detection method
9.3 Enumeration method (MPN method)
9.4 Isolation and selection for confirmation
9.5 Subculturing selected colonies
9.6 Biochemical confirmation tests
10 Expression of results
10.1 Confirmed positive tubes
10.2 Detection method
10.3 Enumeration method: Calculation of the most
probable number (MPN)
11 Precision
12 Test report
Annex A (normative) Diagram of procedure of the detection method
Annex B (normative) Diagram of procedure for MPN technique
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