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AS 4276.21:2019
$242.18
Water microbiology, Method 21: Examination for coliforms and Escherichia coli — Determination of most probable number (MPN) using enzyme hydrolysable substrates (ISO 9308-2:2012, MOD)
The objective of this Standard is to specify a method for the enumeration of Escherichia coli (E. coli) and coliform bacteria in water.
Table of contents
Header
About this publication
Preface
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and glassware
5.1 Apparatus for sterilization by steam (autoclave)
5.2
5.3
5.4
5.5
5.6
5.7
5.8
6 Culture media and reagents
6.1 Basic materials
6.2 Diluent
6.3 Antifoam B
7 Sampling
8 Procedure
8.1 Preparation of the sample
8.2 Inoculation of media
8.3 Incubation and differentiation
8.4 Examination of results
9 Expression of results
10 Test report
11 Quality assurance
Annex A
Annex B
B.1 General
B.2 Calculation of the most probable number
B.2.1 Calculation of MPN for IDEXX Quanti-Tray5 and Quanti-Tray/2000
B.2.1.1 Quanti-Tray (51-well)
B.2.1.2 Quanti-Tray5)/2000 (97-well)
Annex C
Annex D
Bibliography
Appendix ZZ
ZZ1 Scope
ZZ2 Variations
Appendix ZA
Cited references in this standard
Please select a variation to view its description.
| Published | 07/03/2018 |
|---|---|
| Pages | 52 |
Please select a variation to view its pdf.
