P/A and MPN Test Results in the Field Without Lab Equipment
Rapid and Robust E. coli and Total Coliform Water Quality Test Kits
Features of CBT EC+TC Kits
- No electricity, lab, cold chain or expensive, complicated equipment required
- Low cost and portable
- Easy to use for field level testing in low resource, rural, disaster/emergency areas
- Ambient temperature incubation at 25° Celsius and above
- Ambient temperature test results in 20-48 hours
- Works at variable temperatures, constant temperature control not required
- Two-year shelf life of growth medium
- Color change test results easy to interpret
- Compact and lightweight, small number of consumables
- Meets World Health Organization Guidelines for Drinking Water Quality
- MPN Kits used to test surface waters and wastewater with Dilutions
WHO CBT Kit Report
The World Health Organization (WHO) engaged KWR Laboratory in The Netherlands to evaluate the Aquagenx® CBT EC+TC MPN Kit. This initiative was partly driven by the UNICEF Rapid Water Quality Testing Project. Our test was evaluated against reference method IDEXX Colilert Quanti-Tray 2000, a lab-dependent test designed for testing wastewater and surface waters. Colilert Quanti-Tray 2000 has 96 wells that can quantify up to 2419 MPN of E. coli/100 mL.
Despite the difference in sensitivity between the two tests for very high concentrations of bacteria, our CBT EC+TC MPN Kit is an effective test that performs extremely well and compares favorably against Colilert Quanti-Tray 2000 in lower ranges of bacteria levels relevant to drinking water testing and quality. The CBT EC+TC MPN Kit also receives high marks for usability.
CBT EC+TC P/A Kits
Presence or Absence (P/A) in 100 mL

Image: CBT EC+TC P/A Kit 50-Pack
CBT EC+TC P/A Kit 25-Pack
Product Number: CBT-ECTC-PA-25
25 samples
Kit contains:
25 Aquagenx powder growth medium packs
25 100-mL Stand-Up Whirl-Pak® Thio-Bags®
CBT EC+TC P/A Kit 50-Pack
Product Number: CBT-ECTC-PA-50
50 samples
Kit contains:
50 Aquagenx powder growth medium packs
50 100-mL Stand-Up Whirl-Pak Thio-Bags
CBT EC+TC P/A Kit 100-Pack
Product Number: CBT-ECTC-PA-100
100 samples
Kit contains:
100 Aquagenx powder growth medium packs
100 100-mL Stand-Up Whirl-Pak Thio-Bags
Optional UV Flashlight to detect total coliforms sold separately.
CBT EC+TC MPN Kits
Most Probable Number (MPN) in 100 mL

Image: CBT EC+TC MPN Kit 50-Pack
CBT EC+TC MPN Kit 25-Pack
Product Number: CBT-ECTC-MPN-25
25 samples
Kit contains:
25 Aquagenx powder growth medium packs
25 100-mL Stand-Up Whirl-Pak® Thio-Bags®
25 Aquagenx Compartment Bags
1 reusable clip to seal compartment bag shut. Extra clips sold separately.
CBT EC+TC MPN Kit 50-Pack
Product Number: CBT-ECTC-MPN-50
50 samples
Kit contains:
50 Aquagenx powder growth medium packs
50 100-mL Stand-Up Whirl-Pak Thio-Bags
50 Aquagenx Compartment Bags
2 reusable clips to seal compartment bag shut. Extra clips sold separately.
CBT EC+TC MPN Kit 100-Pack
Product Number: CBT-ECTC-MPN-100
100 samples
Kit contains:
100 Aquagenx powder growth medium packs
100 100-mL Stand-Up Whirl-Pak Thio-Bags
100 Aquagenx Compartment Bags
4 reusable clips to seal compartment bag shut. Extra clips sold separately.
Optional UV Flashlight to detect total coliforms sold separately.
CBT EC+TC Kit Components

Growth Medium
Aquagenx powder growth medium dissolves quickly

Compartment Bag
Aquagenx Compartment Bag included with MPN Kits

Whirl-Pak Thio-Bag
100 mL Whirl-Pak Thio-Bag for sample collection and P/A Kits

Seal Clip
Seal clip snaps on Compartment Bag to prevent leakage