![HI774-11 Marine ULR Phosphate Standards for HI774 Hanna Checker](http://aquaticsuppliesusa.com/cdn/shop/products/212046-hannainstruments-ulr-hi774-11-testing-fr_{width}x.jpg?v=1637263649)
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.
What's Included?
1x 0ppb Sample Cuvette
1x 100ppb (+/-10)Sample Cuvette
1x Certificate of Analysis