Furrow Pump, Inc. P.O. Box 1849 8525 SW St. Helens Dr. Wilsonville, OR 97070 Phone: (800) 937-3666 FAX: (800) 377-9960 www.furrowpump.com |
HOW TO INTERPRET YOUR JAR TEST RESULTSThe ratio between the amount of test solution used and the volume of the water sample can be converted to parts per million, which will help us to size a chemical pump. In the case of chlorination, you may have needed only a few drops from the pipet before your free chlorine test kit showed you a residual of 0.5 – 1.0 PPM. You can determine the milliliters of hypochlorite solution used from the formula below:
Once you have figured out the volume of test solution you used, the ratio between this and the water sample volume can be converted to PPM:
Our jar testing allows us to use readily measured volumes at convenient test levels, while still using weak concentrations of test chemicals we’re able to easily locate. To actually size a pump, it will also be necessary to employ a Conversion Factor (CF) that converts the test chemical results so that they will be comparable to the strength of the chemical you choose to use in your application. For domestic water chlorination, I’d recommend using a 0.5 % hypochlorite solution. You can see from the following table that the CF we’d use in the calculation formula would be 0.01.
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