Water Hardness Test Strips

Color Chart


Serim® MONITOR™ for Water Hardness strips give a semi-quantitative indication of total hardness [expressed as calcium carbonate (CaCO3)] in the water used directly in food and beverage products as well as the water used for cleaning and disinfecting the processing equipment.

Test Range:

A semi-quantitative estimation of the total hardness of water between 0 and 425 ppm can be made by comparing the reacted indicator pad color to the color chart on the bottle label.

Color blocks represent hardness levels of 0, 25, 50, 120, 250 and 425 ppm with equivalent values expressed in grains per gallon.

Test Time:

Semi-quantitative –   15 seconds

To place an order or to get more information:

Product Options:

Product CodeDescriptionPack Size
5149 Water Hardness Test Strips 1 bottle of 50 strips