Total Hardness Test. 1. Label the two beakers with their respective names. 2. Put 10 mL of sample in their respective beakers.

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Presentation transcript:

Total Hardness Test

1. Label the two beakers with their respective names. 2. Put 10 mL of sample in their respective beakers.

3. Dip one test strip in sample beaker for 3 seconds.

4. Remove and immediately match to the closest colour on the colour chart that is located on the test strip packet. Colour is only stable for 1 minute. 5. Read and record results as mg/L (parts per million), match with the best colour to determine the Total Hardness concentration. 6. Repeat for the Guideline Limit Sample. Results: The Saskatchewan Guideline Limit Sample (SGLS) for Total Hardness should give a result very close to the 800 mg/L guideline; this is a very high level of hardness and should only be encountered in untreated well water sources.