HI782-11 Marine HR Nitrate Standards

Each 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 expiry date to provide traceability when certifying the Checker HC.

Standard value ppm = 0.0 to 34.5±3.8.

Hanna Instruments certifies these standards meet the stated tolerance limits as indicated. These should be used for quality control to validate the HI782 Nitrate High Range Marine Checker.

1. Thoroughly wipe the standard cuvette with a lint free cloth (HI731318 recommended) and only handle using top of cuvette. The cuvette wall must by dry and free of smudges.

2. At the C1 prompt, place HI782-11A standard cuvette into the holder of the Checker and press operations button.

3. At the C2 prompt, place HI782-11B standard cuvette into the holder and press the operations button.

4. Acceptable results must be between 31.2 ppm and 38.8 ppm at 25˚C.