Manganese Test. 1. Label the four clear plastic vials with the names of the water samples to be tested. 2. Test the Manganese CGLS sample first. 3. Support.

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Presentation transcript:

Manganese Test

1. Label the four clear plastic vials with the names of the water samples to be tested. 2. Test the Manganese CGLS sample first. 3. Support the CGLS vial with one hand and with the other hand, dip one Manganese #1 strip into the sample and move it back and forth in a gentle motion. Do this for 20 seconds. Remove the strip and throw it away. (Vial not supported by other hand in picture to make vial visible.)

4. Dip one Manganese #2 strip into the sample and move it back and forth in a gentle motion. Do this for 20 seconds. Remove the strip and throw it away.

5. Dip one Manganese #3 strip into the sample and move it back and forth in a gentle motion for 30 seconds.

5. (Continued) Remove the strip from the sample and shake it once to remove any excess sample.

6. To determine the Manganese concentration in mg/L (same as parts per million, ppm), wait 90 seconds and match the colour of the test strip to the nearest colour on the chart. To best match the strip to the colour chart, fold the strip in half, so that the aperture is against a white background. 7. Record the results for the sample. 8. Fill up the 10 mL clear plastic vials with their respective samples. Repeat steps 3 to 7 with the four other water samples.

Results: Compare results to the Guidelines for Canadian Drinking Water Quality. The CGLS for Manganese should give a result very close to the 0.05 mg/L guideline; a darker colour means that the water does not meet the Guidelines for Canadian Drinking Water Quality.