- Supplied with Certificate of Analysis
- Standard value of 400 +/- 20 ppm calcium @ 25°C
- Reusable with long shelf life stability
HI758-11 is a high-quality set of calibration standards that allows users to validate the Marine Calcium Checker® HC - HI758. The HI758-11 includes one sealed cuvette for zero ppm calcium and one cuvette that is tinted to an equivalent 400 +/- 20 ppm calcium sample @ 25°C. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.
The HI758-11 is supplied with Certificate of Analysis