|Search By Accuracy|
HANNA is one of the few producers to offer calibration solutions in packages from 20 to 500 mL for lab and field applications. Our packaging has been designed to keep air and light from damaging the solution.
*TDS conversion factor 4-4-2: 0.65 ppm = 1 µS/cm (approximately).
20 Sachets, (10 pH 7.01, 10 1500 ppm)