BS EN ISO 9308-3:1999

1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Culture media and diluent
8 Procedure
9 Expression of results
10 Test report
11 Performance data
Annex A (informative) Example of software for statistical
         analysis of MPNs
Annex B (informative) Example of software for computation
         of MPN
Annex C (informative) Synthetic sea salt
Annex D (informative) Performance characteristics of the
         method
Annex E (normative) Quality criteria for manufacturing of
         the medium in microtitre plates
Annex F (normative) Preparation of calibration microtitre
         plates
Annex ZA (normative) Normative references to international
         publications with their relevant European
         publications
Bibliography

Gives a method to detect and enumerate escherichia coli (E.coli) in surface and waste water by inoculation in a liquid medium. Applies to all types of surface and waste waters, particularly those rich in suspended matter.

This part of ISO 9308 specifies a miniaturized method for the detection and enumeration of Escherichia coli (E. coli) in surface and waste water by inoculation in a liquid medium. The method is applicable to all types of surface and waste waters, particularly those rich in suspended matter.

This method is not suitable for drinking water and any other type of water for which the guideline is less than 15 counts per 100 ml.

This method is not appropriate for enumeration and detection of coliform bacteria other than E. coli.