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Service Test Strips for Chlorine/Bromine, pH, Alkalinity, Hardness, CYA w/ mobile app (250 count)


Analyte System Method/Chemistry Standard/Equivalance or Description Comparator Cell
Alkalinity, Total Test strip Proprietary 0, 40, 80, 120, 180, 240 ppm total alkalinity as CaCO₃ NA NA
Bromine, Free Test strip Proprietary 0, 2, 4, 6, 10, 20 ppm bromine (Br₂) NA NA
Chlorine, Free Test strip Proprietary 0, 1, 2, 3, 5, 10 ppm chlorine (Cl₂) NA NA
Cyanuric Acid Test strip Proprietary 0, 40, 70, 100, 150, 300 ppm CYA NA NA
Hardness, Total Test strip Proprietary 0, 100, 200, 400, 800 ppm total hardness as CaCO₃ NA NA
pH Test strip Proprietary 6.4, 6.8, 7.2, 7.5, 7.8, 8.4 NA NA


All reagents have a shelf life, whether they are liquids, powders, crystals, tablets, or test-strip pads. If kept dry, powders and crystals are very stable; acids are also long lived. Date of manufacture is not the controlling factor when it comes to shelf life—storage conditions are more important. As with all perishables, reagents are sensitive to environmental influences and will last longer under controlled conditions.

To this end, we recommend:

  • Storing reagents at a consistent temperature in the range if 36°–85°F (2°–29°C); extreme temperature fluctuation, say from a refrigerator to a hot car trunk, causes reagents to deteriorate.
  • Keeping them out of prolonged direct sunlight. (Note: their brown plastic bottles help protect very light-sensitive reagents.)
  • Segregating reagents from containers of treatment chemicals.
  • Replacing caps immediately and tightening them carefully so that exposure to air and humidity is limited.
  • Avoiding switching bottle caps, placing bottle caps on soiled surfaces, repouring reagents into contaminated containers, or touching test strip pads.

Taylor formulates its reagents to remain effective for at least one year, with only very few exceptions (molybdenum indicator in liquid form is one; after four months old it should be tested against a standard periodically). As a general precaution, replace all reagents more than one year old, or at the beginning of a new testing season.

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