Whirl-Pak Coli-Test Bag

Thursday, 01 September, 2016 | Supplied by: Australasian Medical & Scientific Ltd


If water samples are being tested with colour-changing reagents, the Coli-Test Bag from Whirl-Pak can be used in place of a bottle. The bag is made of a special barrier film suitable for use with enzyme-based methods that result in a chromogen and/or a fluorogen release when total coliform and E. coli are present. The special film prevents colour change from permeating through the bag, contaminating another sample and creating a false positive, and making contact with a person’s skin if they are not wearing gloves.

It is sterile, contains 10 mg of active sodium thiosulfate to neutralise chlorine, has a 100 mL fill line and is completely self-standing, with no rack or holder needed to keep the bag upright. If the sample is not chlorinated, the bag can still be used; the sodium thiosulfate will not affect the sample, it is non-toxic and non-nutritive, and only neutralises chlorine if present.

The Coli-Test bag has been accepted by the EPA in USA and is listed in the EPA Manual for the Certification of Laboratories Analyzing Drinking Water.

The bag, which is available from AMSL Scientific, reduces costs as it is less expensive than the bottle, and incurs lower freight charges and reduced disposal costs.

Online: www.amsl.com.au
Phone: 02 9882 3666
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