A high quality set of calibration standards that allows users to validate and calibrate the HI-96771 portable photometer that has a 0.00 to 5.00mg/L (ppm) and 0 to 500mg/L free chlorine range. The HI-96771-11 includes one sealed “A” cuvette for zeroing the meter and one “B” cuvette that is used to validate or calibrate. An acceptable reading using the standards with the HI-96771 is 1.00±0.03mg/L for the low range and 100±3mg/L chlorine for the ultra high range @ 25°C. The calibration set is produced using reagent grade chemicals in a temperature controlled environment.

• Supplied with Certificate of Analysis
• Provided storage containers are light tight and protect from accidental breakage
• Standards are used for both the 0.00 to 5.00mg/L (ppm) low range free chlorine and the 0 to 500mg/L (ppm) ultra high chlorine range
• CAL Check™ Standards provide a simple solution to calibrating and validating the HI-96771 portable photometer