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Colorimeter, TTi 2000

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Analyte System Method/Chemistry Standard/Equivalance or Description Comparator Cell
Alkalinity, Total Electronic meter Bromocresol green 0-250 ppm total alkalinity as CaCO₃ NA 9601
Bromine, Total Electronic meter DPD 0-10.00 or 0-20.0 ppm bromine (Br₂) NA 9601
Chlorine, Bleach Electronic meter Direct Read 0-15% available chlorine (Cl₂) NA 9601
Chlorine, Free & Total Electronic meter DPD 0-8.0 ppm chlorine (Cl₂) NA 9602
Chlorine, Free & Total Electronic meter DPD 0-4.00 or 0-10.0 ppm chlorine (Cl₂) NA 9601
Copper Electronic meter Cuprizone 0-3.00 ppm Cu NA 9601
Cyanuric Acid Electronic meter Turbidimetric (Absorptometric) 7-120 ppm CYA; by dilution: 35-600 ppm CYA NA 9601
Hardness Calcium 800 Electronic meter Alizarin red 0-800 ppm calcium hardness as CaCO₃ NA 9601
Hardness, Total Electronic meter Calmagite 0-500 ppm total hardness as CaCO₃ NA 9601
Hydrogen Peroxide (Biguanide Shock) Electronic meter Iodide catalytic oxidation 0-2.00 ppm H₂O₂; By dilution: 2-20, 20-100, or 100-125 ppm H₂O₂ NA 9601
Iron Electronic meter Tripyridyl-s-triazine 0-4.00 ppm Fe NA 9601
Manganese 0.8 Electronic meter PAN (1-(2-Pyridylazo)-2-napthol) 0-0.80 ppm Mn N/A 9601
Monopersulfate (Oxidizing Shock) Electronic meter DPD 0-10.0 ppm chlorine (Cl₂) NA 9601
Nitrate 44 Electronic meter Zinc Reduction/Chromotropic Acid 0-44 ppm NO₃ˉ; 0-10.0 ppm NO₃ˉN NA 9601
Other Other Colorimetric absorption analysis: TTi Colorimeter Series Five secondary absorbance standards to verify instrument performance at all wavelengths, instruction, case
Other Electronic meter Colorimetric absorption analysis: TTi 2000 Colorimeter Colorimeter preprogrammed for operators, service professionals, and others who want to assure that water in pools and spas is chemically balanced and safe for bathers. Will accommodate an additional 8 user-developed tests. Contains two 15 mm sample cells, two 25 mm sample cells, one 50 mL dilution vial, one foam brush, four batteries, one AC power adapter, one USB cable, PC App, lifetime free access to new tests for TTi 2000, Quick-Start Guide. Purchase colorimeter reagent packs separately and carrying case separately. NA NA
pH Electronic meter Phenol red 6.50-8.50 NA 9601
pH w/ acid/base demand Electronic meter Phenol red 6.50-8.50 NA 9601
Phosphate Electronic meter Molybdenum blue 0-3.00 ppm (20-3000 ppb) PO₄³ˉ NA 9601
Sodium Chloride (Salt) Electronic meter Turbidimetric (Absorptometric) 0-80 ppm NaCl; By dilution: 75-150, 150-500, 500-2000, or 2000-8000 ppm NaCl NA 9601


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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Accuracy Check Kit (for TTi Colorimeter Series)


Reagent Pack, Colorimeter, Chlorine (free/total), DPD, 0-4.00, 0-8.0, or 0-10.0 ppm


Reagent Pack, Colorimeter, Bromine (total), DPD, 0-10.00 or 0-20.0 ppm


Reagent Pack, Colorimeter, Phosphate, Molybdenum Blue, 0-3.00 ppm (20-3000 ppb)


Reagent Pack, Colorimeter, Iron, Tripyridyl-s-triazine, 0-4.00 ppm


Reagent Pack, Colorimeter, Copper, Cuprizone, 0-3.00 ppm


Reagent Pack, Colorimeter, Hydrogen Peroxide, Iodide Catalytic Oxidation, 0-2.00 ppm


Reagent Pack, Colorimeter, Sodium Chloride (Salt), Turbidimetric (Absorptometric), 0-80 ppm


Reagent Pack, Colorimeter, Alkalinity (total), Bromocresol Green, 0-250 ppm


Reagent Pack, Colorimeter, pH, Phenol Red, 6.50-8.50


Reagent Pack, Colorimeter, pH (w/ Acid & Base Demand), Phenol Red, 6.50-8.50


Reagent Pack, Colorimeter, Hardness (total), Calmagite, 0-500 ppm


Reagent Pack, Colorimeter, Hardness (calcium), Alizarin Red, 0-800 ppm


Reagent Pack, Colorimeter, Monopersulfate, DPD, 0-10.0 ppm


Reagent Pack, Colorimeter, Cyanuric Acid, Turbidimetric (Absorptometric), 7-120 ppm


Reagent Pack, Colorimeter, Manganese, PAN, 0-0.8 ppm


Reagent Pack, Colorimeter, Nitrate, Chromotropic Acid, 0-44 ppm


Reagent Pack, Colorimeter, Biguanide, Buffered pH Indicator, 0-70 ppm


Reagent Pack, Colorimeter, Copper (total), Bicinchoninic Acid, 0-4.5 ppm


Reagent Pack, Colorimeter, Iron (total), 1,10 Phenanthroline, 0-3.00 ppm


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