Description
P & M Alkalinity Test Kits
"P & M" (Methyl Purple) Alkalinity Test Kits comes in 1 drop = 10, 20, 25, 50, and 100 ppm."P" Test Directions:
- Fill the mixing botle to the top of the etched mark with the water sample.
- Add 8 drops of
Phenolphthalein Indicator . - If the sample does not turn
red orpink , there is no Phenolphthalein present (Continue to step 6). If the water turns pink or red continue to step 4. - Add
titrating solution until the sample turns colorless. - Multiple the number of drops by the factor of the test for your "P" results.
-
START "M" Test: Add 6 drops of
Methyl Purple Indicator Solution and mix. - If the water sample turns
purple , free mineral acids are present, the "M" reading is reported as zero. - If the water sample turns
green , alkalinity is present and continue the test. - Add the
sulfuric acid titrating solution , drop by drop, swirling the vial until the sample turnspurple . - Multiple the drop count by the drop factor for results.