Description
Calcium Hardness Test Kits
Calcium Hardness Test Kits (Murexide) comes in 1 drop = 2, 5,10, 20, 25, and 50 ppm.Directions:
- Fill mixing bottle with water sample to 25 ml mark.
- Add 1 scoop of Calcium Indicator Powder and swirl to mix.
- Add 6 drops of Cacium Buffer Solution and swirl.
- If the water turns Blue, no Calcium is present and report as 0 ppm.
- If the water turns Purple or Red, hardness is present.
- Add titrating solution, drop by drop, swirling the vial until the solution turns Blue.
- The calcium hardness is the number of drops times the factor of the test.



