Sulphate Test. 1.Label the 3 plastic cups with appropriate number and name: #1 – Control #2 – Canadian Guideline (CGLS) #3 – Local community treated water.

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Presentation transcript:

Sulphate Test

1.Label the 3 plastic cups with appropriate number and name: #1 – Control #2 – Canadian Guideline (CGLS) #3 – Local community treated water

2. Label the 2 pipettes: DI (for Deionized Water), LTW (for Local Community Treated Water).

3. Using a graduated cylinder, measure out 25 mL of Deionized Water to each of the 3 cups.

4. To the #1 Control cup, add 2 mL of the Deionized Water using the pipette labeled DI.

5. To the #1 Control cup, add contents of one of the Sulphate Reagent 1 tubes.

6. To the #1 Control cup while swirling, add contents of one of the Sulphate Reagent 2 tubes.

6. (Continued) Continue swirling for 1 minute and then set the cup aside.

7. To the #2 cup [Canadian Guideline (CGLS)], add contents of tube labeled Canadian Guideline (CGLS). 8. To the #2 cup, add contents of one of the Sulphate Reagent 1 tubes. 9. To the #2 cup while swirling, add contents of one of the Sulphate Reagent 2 tubes. Continue swirling for 1 minute and then set the cup aside. 10. To the #3 cup, using the pipette labeled LTW, add 2 mL of the Local Community Treated Water. 11. To the #3 cup, add contents of the Sulphate Reagent 1 tube. 12. To the #3 cup while swirling, add contents of the Sulphate Reagent 2 tube. Continue swirling for 1 minute and then set the cup aside.

13. Determine the cloudiness of the cups Relative to the Canadian Guideline for Sulphate sample (CGLS) (more or less cloudy) and record the results. Results: The Canadian Guideline sample should be cloudy. If the water sample is less cloudy than the Canadian Guideline, then it passes the Guidelines for Canadian Drinking Water Quality guideline for sulphate, which is 500 mg/L. The Control should not have any cloudiness present.