High quality set of calibration standards that allows users to validate and calibrate their portable photometer.


An acceptable reading using the standards with the HI96771 is 1.00 ±0.03 mg/L for the low range and 100 ±3 mg/L chlorine for the ultra high range @ 25°C. 

Chlorine Low Range and Ultra High Range CAL Check Standards

SKU: HI 96771-11
    • one sealed “A” cuvette for zeroing the meter and one “B” cuvette that is used to validate or calibrate.