Answer
Mar 01, 2023 - 08:49 AM
The detailed test instructions are available for download here.
PROCEDURE
1. Use the syringe, or other available device, to add 5 mL of sample water to the test tube (0715). Dilute to 15 mL line with QAC-free tapwater or distilled water.
NOTE: Other sample sizes may be used to extend the range of the test.
2. Add 5 drops of QAC Indicator Solution (6413). Cap and mix. Solution will turn green. Solution will turn brown if no QAC is present.
3. Fill Direct Reading Titrator (0384) with QAC Titration Solution (6412).
4. While gently swirling the tube, slowly press the plunger to titrate until the green tint just disappears and the solution turns brown.
5. Read the test result directly from the scale where the large ring on the Titrator meets the Titrator barrel. If using a sample size other than 5 mL, multiply Titrator result by the appropriate multiplication factor. Record as ppm QAC.
6. Thoroughly wash the test tube with the brush (0514). Rinse with clean water after each test.
PROCEDURE
1. Use the syringe, or other available device, to add 5 mL of sample water to the test tube (0715). Dilute to 15 mL line with QAC-free tapwater or distilled water.
NOTE: Other sample sizes may be used to extend the range of the test.
2. Add 5 drops of QAC Indicator Solution (6413). Cap and mix. Solution will turn green. Solution will turn brown if no QAC is present.
3. Fill Direct Reading Titrator (0384) with QAC Titration Solution (6412).
4. While gently swirling the tube, slowly press the plunger to titrate until the green tint just disappears and the solution turns brown.
5. Read the test result directly from the scale where the large ring on the Titrator meets the Titrator barrel. If using a sample size other than 5 mL, multiply Titrator result by the appropriate multiplication factor. Record as ppm QAC.
6. Thoroughly wash the test tube with the brush (0514). Rinse with clean water after each test.
