Total Alkalinity Test Reagent

Total Alkalinity Test Procedure

1. REMOVE STRIP
   Remove one (1) eXact® Strip Micro AL, Part No. 486641 from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.
2. TURN METER ON
   Press the ZERO/ON button to power the meter on; the display will show all annunciators, then the current MENU selection, followed by the last reading.
3. SELECT TEST: AL4
   Press and re-press the MENU button until the display shows the parameter AL4.
4. FILL METER WITH SAMPLE
   Rinse the CELL at least 3 times with the water sample you will be testing - rinsing minimizes the potential for cross-contamination from a previous test. Finally, fill cell to capacity (4ml) with the water sample.
5. ZERO METER
   Press the ZERO/ON button. The cursor will move across the display, followed by 0.00 PPM. The sample is ready for testing.
6. DIP STRIP AND PRESS "READ"
   Dip the eXact® Strip Micro AL, Part No. 486641 into the CELL and immediately press READ. This starts the 20 SECOND countdown timer. During this time move the strip in a gentle back and forth motion. Remove and discard the strip after "1" on the display disappears (if water temperature is above 100°F/38°C remove and discard the strip when the time displays 15, countdown continues). The cursor will move across the display while the meter prepares to measure the sample. Record result displayed (this result is automatically stored in AL4). After testing is completed, rinse cell immediately.
   AL4: Total Alkalinity reacts with the Alizarin Red S and citric acid as it is released from the strip to form a red color, directly proportional to the alkalinity present in the sample.

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