Water Quality Test Strips

  • The Ammonia test strips are used to test for tank contaminants in aquariums and will detect the presence of ammonification from protein degradation. The chart reads 0-6ppm, 0ppm being ideal, 0.5 to 1.0ppm being stressed, and 3.0-6.0ppm being dangerous. The pH indicator pad in the Ammonia test strip is constructed to react only to the gaseous ammonia generated by the alkaline environment on the first test pad. The unique construction of the strip reduces, and in some cases eliminates the potential for many interferences, such as CN-, Fe, Mn, Ca, etc. The strip is composed of two filter pads. The first filter pad acts as an absorbent and  takes up the water sample. The first pad has been treated with alkaline materials. This alkaline environment converts any ammonia to the gaseous state. The second filter pad is an hydrophobic material that has been treated in such a manner that only the gaseous ammonia is absorbed by the second filter pad. The second filter pad contains an indicator(s) capable of detecting the gaseous ammonia through a change in the pH of the filter pad.
  • The Aquarium test strips monitor 3 different variables that are significant for aquarium health: pH, Alkalinity & Hardness. The special pH test pad is designed for low-ionic and low-buffered waters present in aquariums. These test strips are often used in marine, ponds and aquariums, both freshwater and saltwater. Our aquarium test strips measure water hardness due to calcium carbonate and can help you determine whether you have hard or soft water in just seconds.
  • The 5-Pad Aquarium Test strips monitor 5 different variables that are significant for aquarium health: pH, Alkalinity, Hardness, Nitrate, and Nitrite. The special pH test pad is designed for low-ionic and low-buffered waters present in aquariums. These test strips can be used to test both freshwater and saltwater ponds and aquariums. Our aquarium test strips measure water hardness due to calcium carbonate and can help you determine whether you have hard or soft water in just seconds.
  • The Residual Chlorine test strip is for use in ensuring free chlorine levels in drinking water are sufficient to inactivate the bacteria and viruses that cause diarrheal disease, as well as ensuring the water is protected from re-contamination during storage. The strip can also be used to ensure systems have no residual free chlorine after chemical sanitization by testing for very low levels of free chlorine in solution from 0.0 ppm - 5.0 ppm. The residual chlorine test strip is accurate within 5-10% of reading the color scale. The vial is sold with an illustrative color chart, which is helpful when testing drinking water from chlorine kits in developing countries.
  • The Fluoride test strip detects Fluoride in steps of 0, 10, 25, 50, and 100ppm. This test strip is used for monitoring fluoride levels in drinking water supplied by city or townships. Too much fluoride present is harmful to humans and animals. The solution to be tested must be at a pH of 0.5 in order for this test to be accurate. This pH measure can be accomplished using concentrated Hydrochloric acid (muriatic acid) to acidify the test solution, and measured with the pH 0-1.5 test strip. Hydrochloric acid should be available at a local hardware or pool/spa store, as well as at any chemical distributors, such as Fisher Scientific or VWR. NOTE: The test strip result must be adjusted to compensate for the dilution used during the acidification process.
  • The Nitrate test strip is used to detect Nitrate in solution at 10, 25, 50, 100, 250, & 500ppm. Nitrate test strips are often used to test fertilizer run-off in agricultural areas. This strip is very sensitive to light and moisture, so be sure to keep the vial tightly sealed. For a dual Nitrate-Nitrite test, check out or combo test strip with both tests in one.
  • The Nitrite test strip is used to detect Nitrite in solution at increments of 1, 5, 10, & 25ppm. These strips are often used when testing for Nitrites in wine, seafood, and sandwich meats, such as ham and bologna. This strip is very sensitive to light and moisture, so be sure to keep the vial tightly sealed. For a dual Nitrate-Nitrite test, check out or combo test strip with both tests in one. The unit of measure is as nitrite, not nitrite-nitrogen.
  • The Nitrite Nitrate test strip is used to test for Nitrites & Nitrates in solution simultaneously. The Nitrate pad detects Nitrate in solution at 10, 25, 50, 100, 250, & 500ppm. The Nitrite pad detects Nitrite in solution at 1, 5, 10, & 25ppm. The unit of measure is as nitrite, not nitrite-nitrogen.  Nitrite test strips are often used when testing for Nitrites in wine, seafood, and sandwich meats, such as ham and bologna. Nitrate test strips are often used to test fertilizer run-off in agricultural areas. This strip is very sensitive to light and moisture, so be sure to keep the vial tightly sealed. We also sell the Nitrite and Nitrate test strips individually with only one test on a plastic strip.
  • The Phosphate test strip detects orthophosphate ions and expresses the result as ppm phosphorous. To express the result as phosphate, multiply the result by 3. This test strip has a unique construction for more accurate testing.
  • Available from Precision Europe only. Not manufactured in our U.S. facility. The 3 Pad Pool test strip monitors 3 different variables vital to swimming pool health: pH, Chlorine (0 - 5ppm), and Alkalinity. The pH pad detects a range of 6.8 to 8.0, while the Alkalinity pad is calibrated at 0, 1, 40, 80, 150, and 200ppm. The Chlorine pad is for low levels of Chlorine and is calibrated at 0, 1, 3, 5, & 10ppm. The special pH test pad is designed for low-ionic and low-buffered waters present in pools.
  • Available from Precision Europe only. Not manufactured in our U.S. facility. The 5 Pad Pool Test Strips monitor 5 different variables vital to swimming pool health: pH, Hardness, Total Chlorine, Free Chlorine/Bromine, Total Alkalinity. The narrow-range pH pad detects a range of 6.8 to 8.4, while the Alkalinity pad is calibrated at 0, 1, 40, 80, 150, and 200ppm. The Chlorine pad is for low levels of Chlorine and is calibrated at 0, 1, 3, 5, & 10ppm. The special pH test pad is designed for low-ionic and low-buffered waters present in pools.
  • The Water Hardness test strip is calibrated at 0, 50, 125, 250, and 500ppm, and is also calibrated at 0, 3, 7, 15, and 30 grains per gallon. Determine whether you have hard or soft water in just seconds. The Water Hardness test strip measures water hardness due to calcium carbonate.

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