Skip to content Skip to navigation menu

Chromogenic Coliform Agar ISO - Easy chromogenic detection of E.coli & coliform bacteria

ID 843330244  pcs.

€125.00 (excl. VAT)


Add to Basket

Differentiating chromogenic agar for the detection and colony count of E. coli and Coliforms from water samples according to ISO 9308-1.

The DMD® product portfolio has been tested referring to the EN ISO 11133 standard. Find out more information.

Benefits & product details

  • Paypal
  • Visacard
  • Mastercard
  • auf Rechung

Benefits & product details of Chromogenic Coliform Agar ISO

Chromogenic Coliform Agar (pH 6.8 ± 0.2) is a ready-to-use, selective and differentiating chromogenic agar for the detection and determination of bacteria count of Escherichia coli (E. coli) and coliform bacteria in water samples with minimal bacterial flora in the background, in accordance with ISO 9308-1 and the new German drinking water regulation.

The combination of two chromogenic substrates allows the simultaneous detection of coliform bacteria and E. coli. The chromogenic Salmon®-GAL substrate (6-chloro-3-indolyl-β-D-Galactopyranoside) is fissioned by the ß-D-Galactosidase, characteristic for coliforms, and results in a pink-red colouring of positive colonies.
The fissioning of the chromogenic X-Glucuronide substrate (5-bromo-4-chloro-3-indoxyl-β-D-Glucuronide) by the ß-D-Glucuronidase, characteristic for E. coli, results in a blue colouring of positive colonies. The colonies turn dark blue violet as E. coli fissions both Salmon®-GAL and X-Glucuronide. This makes it easy to distinguish them from the other coliforms which appear in a pink-red. The Tryptophan contained in the medium improves the indol reaction for the further confirmation of E. coli, thus increasing the detection reliability.

pH value: 6.8 (+/- 0.2)
Incubation T [°C]: +30 or +37
Duration (days): 3

Packaging information
Quantity: 6 x 200ml
Packaging: Glass bottles in cardboard box

Storage of Chromogenic Coliform Agar ISO

Storage temperature T [°C]: +2-8
Shelf life (months): 12

Delivery of Chromogenic Coliform Agar ISO

Here you can find all of the information on our shipping services.
Quick and reliable delivery within a few days.
In-stock items are delivered within 2-5 business days via DHL or via the forwarding agency DSV for larger deliveries.

DHL will deliver the ordered goods to the desired address. If you are not present when DHL attempts to deliver the goods, you will receive a note with information on the DHL parcel shop where you can pick up your order.
In case we are unable to ship the entire order at once, you will receive partial deliveries. This does not involve any additional shipping costs.

The logistics services provider DSV will call you to confirm the date and time of delivery.

When placing your order, you also have the option of specifying a different delivery address, provided that you have already placed an order in the past.

Literature for Chromogenic Coliform Agar ISO