The HI97769-11 Anionic Surfactant CAL Check™ Standards provide a simple solution to calibrating and validating the HI97769 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 anionic surfactant photometers.
- Supplied with Certificate of Analysis
- Standard value of 1.00 ±0.04 mg/L SDBS @ 25℃
- Reusable with long shelf life stability









