Tergitol 7 Agar

Reference : BK123HA

CAD$90.40

Tergitol 7 Agar is used for the enumeration of Escherichia coli and coliform bacteria in water, notably potable water, through the membrane filtration method.

This media is also used for testing swimming pool water.
The typical composition corresponds to that defined in 2 mandatory directives : NF EN ISO 9308-1 for water destined for human consumption and NF T90-431 for swimming pool water testing.

Available in dehydrated base medium : 500 g bottle

To be used with the following supplement: 10 vials qsp 500 ml (BS02608).

Also available as ready-to-use medium :
20 Petri plates Ø 55 mm BM14708
120 Petri plates Ø 55 mm BM09308

In compliance with regulatory requirements, a USDA permit (VS 16-3) is mandatory for shipments from Canada to the USA due to the inclusion of peptone, an animal byproduct.

QUANTITY

Coliform bacteria form colonies that are yellow or orange inside a yellow halo. The halo results from the acidification of lactose under the membrane filter in the presence of a colored indicator, bromothymol blue.

Tergitol 7 inhibits Gram-positive bacteria, limits invasion by Proteus and favors recovery of coliform bacteria.
TTC (2,3,5 triphenyltetrazolium chloride) is present in the form of a freeze-dried supplement. Bacteria that reduce the TTC (including Proteus &t Pseudomonas) display red colonies due to the formation of insoluble formazan. Bacteria that do not ferment lactose form colonies surrounded by a blue halo.

Reference BK123HA

Brand: Biokar

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Tergitol 7 Agar

TS BK123

FT BK123

Tergitol 7 Agar supplement

Tergitol 7 Agar (RTU)