Seawater nitrite standard solutions at 0 and 100 µg/L (ppb) for HI764 checker Exclusive use of sea water

Powder reagents for Checker HC nitrite mini photometer (HI764), 25 tests.

This kit consists of 5 sachets (20 mL) of pH 7.01 buffer solution and 5 sachets (20 mL) of pH 10.01 buffer solution.

Solutions for alkalinity (dKH) in seawater from the HI772 checker, approximately 25 tests

Reagents for alkalinity (dKH) in seawater HI772 and HI755, approximately 25 tests

Powdered reagents for Mini-photometer Checker HC Phosphate (HI774), 25 tests

pH 4.01 and pH 7.01 Calibration Kit, 5 x 20 mL of each.

Calibration Kit for Hanna HI780 Mini Photometer

Reagent for pH in seawater (HI780), approximately 100 tests

Reagents for nitrates in seawater, narrow range (HI781), 25 tests + 25 filter papers

Powdered reagents for Mini-photometer Checker HC Nitrates Wide Range (HI782), 25 tests

Calibration Kit for Hanna HI783 Mini Photometer