Skip to main content
0 Cart

AS/NZS 4276.3.2:2003

Current Date published:

Water microbiology - Method 3: Heterotrophic colony count methods - Method 3.2: Plate count of water containing biocides

This joint standard was developed in conjunction with Standards Australia (SA) who advised us that the standard was reviewed and resulted in a new Australian (AS) only standard AS 4276.3:2021. However this edition will remain current within New Zealand. For the most up to date Australian standards, visit www.standards.org.au.

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.

Get this standard Prices exclude GST
PDF ( Single user document)
$63.00 NZD
Networkable PDF
Price varies
Online Library ( Annual subscription)
Info Price varies
view preview view preview
Pages: 4

Keep me up-to-date

Sign up to receive updates when there are changes to this standard

Related Information

Similar Standards

  • AS/NZS 2031:2001

    Selection of containers and preservation of water samples for microbiological analysis

  • AS/NZS 3666.1:2011


    Air-handling and water systems of buildings - Microbial control - Part 1: Design, installation and commissioning

  • AS/NZS 3666.2:2011

    Air-handling and water systems of buildings - Microbial control - Part 2: Operation and maintenance

  • AS/NZS 3666.3:2011


    Air-handling and water systems of buildings - Microbial control - Part 3: Performance-based maintenance of cooling water systems

view preview view preview
Pages: 4