Total+Alkalinity+test+directions

1. Fill the test tube (0778) to 5 mL line with sample water. 2. Add one Phenolphthalein Tablet (T-2246). Cap and mix until disintegrated. If sample turns red, proceed to Step 3. If no red color develops, P Alkalinity is zero. 3. Fill pipet (0352) with *Alkalinity Reagent B (4493PS). While gently swirling the tube, hold pipet vertically and add *Alkalinity Reagent B drop by drop until color changes from red to colorless. Count the drops added. DO NOT DISCARD SAMPLE IF TESTING TOTAL ALKALINITY. 4. Calculate result. Record as ppm Phenolphthalein Alkalinity as CaCO3. Number of drops in Step 3 x 10 = ppm P Alkalinity TOTAL (T) ALKALINITY 5. Add one BCG-MR Indicator (T-2311) to sample from previous procedure. Cap and shake until disintegrated. Sample color will be green. 6. Fill pipet (0352) with *Alkalinity Regent B (4493PS). While gently swirling the tube, hold pipet vertically and add *Alkalinity Reagent Bdrop by drop until color changes from green to pink. Count the drops added. 7. Multiply number of drops used in Step 6 by 10. Add to result from P Alkalinity procedure. Record as ppm Total Alkalinity as CaCO3. ppm T Alkalinity = (Number of drops in Step 6 x 10) + ppm P Alkalinity If testing only Total Alkalinity, do Steps 1, 5 and 6. Multiply number of drops used in Step 6 by 10. Record as ppm Total Alkalinity as CaCO3.