The HI97701-11 Free Chlorine Cal Check standards provides a simple solution to calibrating and validating the compatible free chlorine portable photometers that have a 0.00 to 5.00 mg/L (ppm) range. This high quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the appropriate free chlorine photometer.
- Pre-dosed reagents for ease of use
- Supplied with certificate of quality
- Marked with expiration date and lot number for traceability









