Ammonium Test older type you have the older
- Slides: 8
Ammonium Test (older type – you have the older type if your test strips are individually packaged and your colour chart is made out of cardboard)
1. Find the small triangle at the top of the cuvette.
1. (Continued) Begin with the Urban Treated Water sample and pour the sample up to the bottom of the triangle. 2. Pour the 4 m. L of AEUL from the vial into the other cuvette.
3. Dip one Ammonia Reagent Strip into the Sample or AEUL for 40 seconds with a gentle, steady, up and down motion. 4. Remove and discard the strip.
5. After 5 minutes, match the colour by placing the vial on the white circles on the card. View into the top of the vial to see which colour matches best. A colour change from yellow (< 0. 1 mg/L) to shades of green indicates the presence of ammonia. Use the colour chart to determine the ammonia concentration. 6. Rinse out cuvettes with Deionized water, and repeat steps 2 -5 for the remaining three samples. Results: Since there is no Canadian Drinking Water Guideline for Ammonia you will compare results to the European Union limit. The standard should give a result very close to the 0. 5 mg/L AEUL; if the colour is darker then it DOES NOT meet the guidelines.
Ammonium Test (new type – you have the new type if your test strips are in a tube and your colour chart is printed on paper)
1. Label the 4 plastic beakers as follows: Urban Treated Water, Rural Treated Water, Untreated Raw Water, and Local Community Treated Water. The ammonia AEUL sample can be tested in its tube. 2. Fill the disposable beakers with the appropriate water samples. 3. Dip ammonia test strips into the water samples for five seconds, remove with pad face up and hold level for 60 seconds. Do not shake off excess water.
4. Compare the colour pads on the test strips to the colours on the colour chart after the 60 seconds have elapsed in order to determine the ammonia concentrations. Results: Since there is no Canadian Drinking Water Guideline for Ammonia you will compare results to the European Union limit. The standard should give a result very close to the 0. 5 mg/L colour; if the colour is darker then it DOES NOT meet the guidelines.
