Water microbiology Heterotrophic colony count methods - Plate count of water containing biocides
Standards Australia
RECONFIRMATION NOTICE
Technical Committee FT-020 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been determined
that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original
date of publication. Users are advised to ensure that they are using the latest versions of
such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 22 November 2013.
The following are represented on Technical Committee FT-020:
ACT Health
Australian Society for Microbiology
Australian Water Association
Department of Health Victoria
National Association of Testing Authorities, Australia
National Measurement Institute
NSW Forensic and Analytical Science Services
Path West Laboratory Medicine, WA
Plastics and Chemicals Industries Association
Queensland Health
Queensland University of Technology
University of Melbourne
Water Services Association of Australia.
This Standard sets out a method for estimating the number of colony-forming units (CFUs) in water using a pour plate technique and R2A Agar.
For waters which may contain growth-inhibiting additives which have not been neutralized, plate counts starting with the 1:100 dilution are recommended in order to eliminate interference with counts. This increases the lower detection limit of the method to 100 cfu/mL. This limit is generally adequate for applications such as the monitoring of cooling tower water.
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | This standard has been reconfirmed in Australia in 2013 and remains current in New Zealand. Reconfirmation Notice 05-12-2013 |
| Committee | FT-020 |
| Supersedes |
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