CAL Check™ standards for Free & Total Chlorine HR, 0.0 and 4.00 ppm

The HI-96734-11 Free and Total Chlorine High Range CAL Check™Standards provide a simple solution to calibrating and validating the HI-96734 chlorine portable photometer that has a 0.00 to 10.00 mg/L (ppm) free and total chlorine range.