Activate High Level Chlorine Test Strips test the efficacy of bleach dilutions to ensure chlorine content is adequate for disinfection. The strips detect 1000, 2500, 5000, 7500 and 10,000 ppm of available chlorine in diluted bleach. Just dip the strip in the solution to be checked and read after 30 seconds.
Strips are supplied in a desiccant-lined vial with ergonomically-designed snap closure to help keep them fresh. A color key on the side of the vial indicates chlorine concentration. 50 strips per vial.