Hardness (Total), Titrets Titration Cells, CHEMetrics

The test kits utilize CHEMetrics Titrets® ampoules. Titrets ampoules use a reverse titration technique to measure analyte concentration levels (titrant volume inside the ampoule is fixed while the sample volume is varied).

After snapping the ampoule tip, the sample is drawn into the ampoule in small doses (with the Titrettor device included in each kit that precisely controls the sample) (Step 1), until a color change signals that the equivalence point has been reached (Step 2). The titration is stopped at the end point and the ampoule is held upright. The liquid level will correspond to a printed scale on the ampoule's outer surface (Step 3).

Water hardness is a standard water quality test used across many industries. Hard water is the cause of many issues both cosmetic, (nuisance), and critical. Hard water can leave unsightly residue on surfaces, even after cleaning with soap or detergent. When heated, hard water leaves mineral deposits which can clog pipes and damage equipment over time making it a particular concern to boiler and power generating industries. Although water hardness does not pose a health concern, high levels will impact the taste of drinking water, so it is commonly measured in communities who use groundwater wells as their primary water source.

K-4520 Increments: 20, 22, 24, 26, 28, 30, 32, 36, 40, 50, 60, 70, 80, 100, 140, 200 ppm

K4502 Increments: 2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.2, 3.6, 4.0, 5.0, 6.0, 7.0, 8.0, 10, 14, 20 ppm