BS ISO 4831:2006
Current
The latest, up-to-date edition.
Microbiology of food and animal feeding stuffs. Horizontal method for the detection and enumeration of coliforms. Most probable number technique
Hardcopy , PDF
English
30-11-2006
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Culture media and diluents
6 Apparatus and glassware
7 Sampling
8 Preparation of the test sample
9 Procedure
10 Calculation and expression of results
11 Precision
12 Test report
Annex A (normative) Flowcharts for procedure
Bibliography
Provides general guidelines for the detection and the enumeration of coliforms.
| Committee |
AW/9
|
| DevelopmentNote |
Supersedes BS 5763-3(1991) and 04/30114058 DC (12/2006)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard gives general guidelines for the detection and the enumeration of coliforms. It is applicable to
-
products intended for human consumption and for the feeding of animals, and
-
environmental samples in the area of food production and food handling.
Enumeration is carried out by calculation of the most probable number (MPN) after incubation in a liquid medium at 30 °C or 37 °C.
NOTE The temperature is subject to agreement between the parties concerned. In the case of milk and milk products, the temperature of incubation is 30 °C.
This enumeration method is applicable when the number sought is expected to be in the range 1 to 100 per millilitre or per gram of test sample.
A limitation on the applicability of this International Standard is imposed by the susceptibility of the method to a large degree of variability. The information given in Clause 11 provides guidance on the applicability of the method and on the interpretation of the results.
| Standards | Relationship |
| ISO 4831:2006 | Identical |
| ISO/TS 11133-1:2009 | Microbiology of food and animal feeding stuffs Guidelines on preparation and production of culture media Part 1: General guidelines on quality assurance for the preparation of culture media in the laboratory |
| 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 8261:2001 | Milk and milk products General guidance for the preparation of test samples, initial suspensions and decimal dilutions for microbiological examination |
| ISO 4832:2006 | Microbiology of food and animal feeding stuffs Horizontal method for the enumeration of coliforms Colony-count technique |
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