AS/NZS 4276.3.2:2003 (R2013)
$16.25
Water microbiology – Heterotrophic colony count methods – Plate count of water containing biocides
| Published By | Publication Date | Number of Pages |
| AS | 2003-03-18 | 9 |
Scope
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.
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