Sample Test Results Aquagenx® CBT EC+TC
CBT EC+TC Presence/Absence (P/A) Kit
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.24.47-HDR.jpg)
Yellow/Yellow Brown ambient light
E. coli: negative
Total coliforms: negative
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.28.10-HDR.jpg)
Blue/Blue Green ambient light
E. coli: positive
Total coliforms: positive
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.26.36-HDR.jpg)
Yellow/Yellow Brown no fluorescence
E. coli: negative
Total coliforms: negative
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.31.27-HDR.jpg)
Yellow/Yellow Brown fluoresces blue
E. coli: negative
Total coliforms: positive
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.31.27-HDR.jpg)
Blue/Blue Green fluoresces blue
E. coli: positive
Total coliforms: positive
CBT EC+TC Most Probable Number (MPN) Kit
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.36.22-HDR.jpg)
Yellow/Yellow Brown ambient light
E. coli: negative
Total coliforms: negative
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.37.00-HDR.jpg)
Blue/Blue Green ambient light
E. coli: positive
Total coliforms: positive
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.40.28-HDR.jpg)
Yellow/Yellow Brown no fluorescence
E. coli: negative
Total coliforms: negative
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.39.31-HDR.jpg)
Yellow/Yellow Brown fluoresces blue
E. coli: negative
Total coliforms: positive
![](https://www.aquagenx.com/wp-content/uploads/2019/05/2019-05-05-16.39.31-HDR.jpg)
Blue/Blue Green fluoresces blue
E. coli: positive
Total coliforms: positive
How to Interpret Color Change
![](https://www.aquagenx.com/wp-content/uploads/2019/05/MasterColorChart.jpg)