HI758-11 Marine Calcium Calibration Check Set for HI758 Checker

Easily calibrate and test proper functionality of your Hanna Checker HI758 Calcium for marine water (saltwater).

• Contains Standard A and Standard B
• Follow instructions in packaging
• Acceptable results must be between 380 and 420 ppm at 25°C

Hanna Checker Instructions for Nitrite ULR Standards:

1. 1. Thoroughly wipe standard cuvette with HI731318 lint free cloth and only handle using top of cuvette. The cuvette wall must be dry and free of smudges.
2. 2. At the C. 1 prompt, place A, HI758-11 standard cuvette into the holder of the Checker and press operations button.
3. 3. At the C. 2 prompt, place B, HI758-11 standard cuvette into the holder of the Checker and press operations button.
4. Acceptable results must be between 380 and 420 ppm at 25°C