Coliform/E. coli Results in 24 Hours. IDEXX Colilert reagent is used around the world for the detection of coliforms and E.coli in water. Colilert, with its patented Defined Substrate Technology (DST), is used in over 90% of all US State labs. Colilert is, in fact, used more than all other methods combined (US, Canada and Japan drinking water markets). Colilert is US EPA-approved and is included in Standard Methods for Examination of Water and Wastewater.
Sample size format: 10 mL, 50 mL, 100 mL, and 250 mL
Time to results: 24 hours
Shelf life: 50 mL and 100 mL formats: up to 12 months at 2-30°C;
10 mL and 250 mL formats: up to 15 months at 2-25°C
Read: Sample turns yellow when coliforms are present and fluoresces to indicate the presence of E. coli
Uses: Presence/absence or quantification using IDEXX Quanti-Tray, Quanti-Tray/2000 or multiple tube Most Probable Number (MPN) testing