The HI97750-11 Potassium CAL Check™ Standards provide a simple solution to calibrating and validating the compatible HI97750 Potassium Portable Photometer. 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 compatible potassium photometers
- Supplied with Certificate of Analysis
- Standard value of 50 ±5 mg/L potassium (medium range) @ 25℃
- Reusable with long shelf life stability









