Calibration solutions for the TROLL^® 9500 ammonium, chloride, and nitrate ISE sensors are available in 1-L bottles.

Ammonium concentrations: 14, 140, and 1400 ppm as N

Chloride concentrations: 35.5, 355, and 3545 ppm

Nitrate concentrations: 14, 140, and 1400 ppm as N