K-1705 Hardness Calcium

K-1705 Hardness Titrets Kit is used to determine Hardness levels from 50-500 ppm

Hardness Information


The K-1705 Hardness Kit was designed to accurately measure the levels of water hardness from 50-500 ppm. K-1705 uses the EGTA Method. The EGTA method is specific for calcium hardness. The EGTA titrant in alkaline solution is employed with a zincon indicator. Results are expressed as ppm (mg/L) CaCO3. 

Hardness is a measure of the mineral content of water. Calcium and magnesium are the most common minerals that contribute to hardness. Hard water causes scaling in boilers and other industrial equipment, and diminishes the effectiveness of soaps and detergents.

Shelf Life: 8 Months

What's included:

  • 30 Ampoules with valve assemblies
  • Titrettor
  • 25 mL Sample Cup
  • Indicator Solution
  • Instructions



How to use:

  1. Add 20 mL of sample into the empty sample cup. Fill the sample cup to 25ml  

  2. Add 3 drops of Indicator Solution. Stir gently.
  3. Snap the tip of the ampoule at the black snap ring.

  4. Lift the control bar and  insert the Titret assembly into the Titrettor.

  5. Hold the Titrettor with the sample pipe in the sample. Press the control bar firmly, but briefly, to pull in a small amount of sample. Sample will turn ORANGE.
  6. Repeat, mixing the assembly between each sample draw. 

  7. Tip the vacu-vial back and forth to mix
  8. Watch for a color change from ORANGE to BLUE. 
  9. Repeat until the change to BLUE is permanent to remove the ampoule and obtain results.


K-1705 Instructions

Hardness Information


WARNING! This product can expose you to chemicals including ethylene glycol, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

More Information
Manufacturer CHEMetrics
Call For Price No
Gas Hardness
4-20 mA Output No
Voltage Output None
Power Requirements 4 AAA Batteries
Datalogging No
Warranty 1 Year
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