Hanna Instruments Phosphate HR Calibration Standard Kit (HI-711-11)

This high-quality set of standards comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date for traceability when certifying the Checker® HC.

HI-774-11 is a high-quality set of calibration standards that allows users to validate the Phosphate Ultra Low Range Checker® HC – HI-774. The HI-774-11 includes one sealed cuvette for zero ppm phosphate and one cuvette that is tinted to a specific value. The calibration check set is produced using reagent grade chemicals in a temperature controlled environment.