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Total Chlorine Test

This guide outlines the procedure for testing total chlorine levels in water samples to assess drinking water quality. Label two glasses with the sample names, and fill each with approximately 50 mL of water. Use a test strip, dipping it into one of the samples for 5 seconds, then shake off excess water and allow it to dry for 30 seconds. Match the color of the strip with the chart to determine total chlorine concentration in mg/L or ppm. Compare results with Canadian drinking water standards of 0.1 mg/L to ensure safety.

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Total Chlorine Test

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  1. Total Chlorine Test

  2. 1. Label the two glasses with their respective names. 2. Put about 50 mL of sample in respective glasses (volume is really not critical).

  3. 3. Dip one test strip in glass for 5 seconds with constant back and forth motion, so that water passes through the small aperture in the test strip.

  4. 4. Remove and shake the test strip once, briskly, to remove any excess water on the strip.

  5. 4. (Continued) Allow the test strip to dry for 30 seconds by lying across glass.

  6. 5. Match with the best colour to determine the Total Chlorine concentration in mg/L or parts per million (ppm). Complete the colour matching within 15 seconds. Do one sample at a time. 6. Write up your results. Results: Compare results to the Guidelines for Canadian Drinking Water Quality of 0.1 mg/L; a lighter colour of green means that the water Does Not meet the Guidelines for Canadian Drinking Water Quality, a darker colour means that the water treatment plant may be using excessive amount of chlorine. Please refer to the facts sheet portion of the instructions for more information about chlorine.

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