The HI3842 is a chemical test kit that measures total hardness as CaCO3 by titration with EDTA. The HI3842 is supplied complete with all of the reagents and equipment necessary to perform approximately 50 tests.
Water hardness has traditionally been defined as the capacity of water to precipitate soap. The ionic species in the water causing the precipitation was later found to be primarily calcium and magnesium. Thus, water hardness is actually a quantitative measure of these ions in the water. It is also now known that certain other ion species, such as iron, zinc, and manganese contribute to the overall water hardness. The measure and subsequent control of water hardness is essential to prevent scaling and clogging in water pipes.
Range | 400 to 3000 mg/L CaCO₃ |
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Resolution | 100 mg/L |
Method | EDTA |
Number of Tests | 50 |
CTK Type | Titration |
Weight | 120 g |
Ordering Information | HI3842 test kit comes with 30 mL hardness HR reagent and 50 mL calibrated vessel. |