Hardness Test Kit Pro 50 Tests 0-50 Grains/Gallon
Professional Test Kit 1-30 Grains 50 to 75 Tests in heavy-duty plastic water proof case. Drop count titration test provide a low-cost method for titrimetric determinations. To calculate concentration simply add the #1 test reagent to the sample then add #2 liquid reagent until the color changes to blue. 1 drop for titrations requiring up to 20 drops and +/- 5% for titrations requiring over 20 drops. Most titrations require 10 to 20 drops.
Manufacturer #: TK-14