Products Catalog

Specification

Colitest is a most convenient product line for the determination of the presence or absence
of either total coliforms and E.coli in drinking water, surface and source water samples.
It is a one-step, ready to use medium, to be combined with a water sample.
This products is designed to test water samples for total coliforms and E.coli in 24 hours
and does not require further cofirmation or verification steps.

cMethod
DST (Defined Substrate Technology)
cDetection Limit
1CFU in a 100mL Sample
cCulture time
24hr
cCulture Temp
35±1
cProduct Storage
2~30, away from light.

1.Open the cap and unseal the half of the aluminum foil.Put the 100 mL sample into the bottle.

2. Incubation at 35±1 for 24 hours
( If incubated at room temperature ( 20±5 )
the incubation time is prolonged to 48 hours )

3. If Total coliforms are present, the medium changes color from near colorless
to yellow, In addition, if any E.coli are present in the sample, a bright blue
fluorescence is emitted when the sample is subjected to long wavelength
(UV Lamp_365nm)