Video

Color Comparator Demo - Iron Test

Color Disc Comparators are designed to react with a wide range of specific chemicals such as iron, chlorine, fluoride, and nitrates. They are used with a range of interchangeable colour discs for specific chemicals. The test uses a visual comparison of a reacted sample colour to a colour disc standard to determine the concentration of the chemical in the test sample.

This demo shows how to use a color comparator to measure iron levels in water.

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About CAWST

CAWST is a Canadian charity and licensed engineering firm. We address the global need for safe drinking water and sanitation by building local knowledge and skills on household solutions people can implement themselves.