The HI97770-11 Silica CAL Check™ standards provide a simple solution to calibrating and validating the HI97770 Silica High Range 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 the HI97770 photometer.
- Supplied with Certificate of Analysis
- Standard value of 150 ±2.5 mg/L (ppm) SiO2
- Reusable with long shelf life stability









