Description
The HI3812 Total Hardness Test Kit provides a reliable method for measuring water hardness by titrating calcium and magnesium ions with EDTA. The sample is first buffered to the correct pH, and calmagite indicator is added, forming a red complex with the metal ions. EDTA is then titrated into the sample until all free ions are bound, at which point the indicator changes color from red to blue, signaling the endpoint. The total hardness is calculated based on the titrant volume, providing readings with 0.3 mg/L resolution for low-range samples and 3 mg/L resolution for high-range samples.
Monitoring total hardness is essential because excessive calcium and magnesium can cause scaling in pipes, reduce the effectiveness of soaps, and damage industrial equipment. The HI3812 kit includes all consumables required for the test, and replacement reagents (HI3812-100) can be ordered when supplies run out, making it a cost-effective solution for ongoing water hardness testing.
