Ensure the performance of your HI774 Ultra Low Range Phosphate Checker with the HI774-11 ULR Phosphate Standards. Each kit includes two cuvettes, one sealed cuvette that will read at 0ppb of Phosphate, and then another cuvette that is tinted to an equivalent of 100ppb (± 0.10) @ 25°C. Each set it checked at Hanna's state of the art facility and guarantees each set of calibration standards.
1x 0ppb Sample Cuvette
1x 100ppb (+/-10)Sample Cuvette
1x Certificate of Analysis