Colilert-18 (200-test pack)

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Product #: 98-08877-00

Brand: IDEXX

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Detect Total Coliforms and E. coli in Water or Fecal Coliforms in Wastewater in 18 hours

Simultaneously detects both Total Coliforms and Escherichia coli in water, or Fecal Coliforms in wastewater, giving you results in 18 hours.

- Read afternoon samples the next morning—before the next day’s samples arrive.
- Lift boil water alerts in 18 hours.
- Provide results in record time for real estate, new well, and new construction samples.
- Read Friday samples early Saturday, leaving the rest of the weekend free.

Presence/ Absence Test
Step 1: Add reagent to sample and incubate at 35°C ± 0.5°C for 18 hours
Step 2: Read results
Colorless = Negative
Yellow = Total Coliforms
Yellow/Fluorescent = E. coli

Quantification Test:
Step 1: Add Reagent to sample and mix well
Step 2: Pour sample into Quanti-Tray (count from 1 to 200) or Quanti-Tray/2000 (count from 1 to 2,419)
Step 3: Seal in Quanti-Tray Sealer and place into incubator for 18 hours at 35°C ± 0.5°C
Step 4: Read Quanti-tray or Quanti-tray/2000 results
Yellow wells = Total Coliforms
Yellow/Fluorescent wells = E. coli
Count positive wells and refer to MPN table