Jump to Method AlkalinityAluminumAmmoniaBromineCalciumCarbon DioxideChemical Oxygen Demand (COD)ChlorideChlorineChlorine DioxideChromateConductivityCopperCyanideDEHADetergents (anionic surfactants)Filming Amine (aliphatic amine)FluorideFormaldehydeGlutaraldehydeGlycolHardnessHydrazineHydrogen PeroxideHypochloriteIronManganeseMercaptobenzothiazole (MBT)MolybdateNitrateNitriteOxygen (dissolved)OzonePeracetic AcidPermanganatepHPhenolsPhosphateQuaternary Ammonium Compounds (QACs)SilicaSulfateSulfideSulfiteThiosulfateTotal Dissolved Solids (TDS)Total Petroleum Hydrocarbons (TPH)TurbidityZinc   Quaternary Ammonium Compounds (QACs)   Method References: Wang, L. K., Shuster, W. W., “Polyelectrolyte Determination at Low Concentration,“ Ind. Eng. Chem., Prod. Res. Dev., Vol. 14, No. 4, 1975, pp. 312-314. Parazak, D. P., Burkhardt, C. W., McCarthy, K. J., “Determination of Low Levels of Cationic Polyelectrolytes in Water,“ Analytical Chemistry, Vol. 59, No. 10, May 15, 1987, pp. 1444-1445. QACs are known for their bactericidal and disinfecting qualities. They are used extensively throughout the healthcare and food processing industries to sanitize, deodorize, and disinfect surfaces and equipment. QACs are also routinely formulated with various water treatments to inhibit algal growth in cooling towers, humidifiers, and swimming pools. These tests are applicable to the monitoring of QACs in cleaning solutions and cooling waters. CHEMetrics employs a titrimetric chemistry in which stabilized polyvinyl sulfate is the titrant and toluidene blue is the end point indicator. A color change from purple to navy signals the end of the titration. Results are expressed as ppm (mg/L) QAC.   • Click to View MSDS and Kit instructions     Visual Kits 100-1000 ppm 100 ppm / Method: Polyvinyl Sulfate   Cat# Titrets Kit K-8810 Increments: 100, 110, 120, 130, 140, 150, 160, 180, 200, 250, 300, 350, 400, 500, 700, 1000 ppm Kit comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules with valve assemblies, titrettor, 25 mL sample cup, instructions, and MSDS. Click here to Buy Now Complete Kits! 2000-20,000 ppm 2000 ppm / Method: Polyvinyl Sulfate   Cat# Titrets Kit K-8820 Increments: 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3600, 4000, 5000, 6000, 7000, 8000, 10,000, 14,000, 20,000 ppm Kit comes in a cardboard box and contains everything needed to perform 30 tests (except distilled water): thirty ampoules with valve assemblies, titrettor, 25 mL sample cup, 1.0 mL syringe, instructions, and MSDS. Click here to Buy Now Complete Kits!   Kit Components common to QACs Description Cat# Sample Cup Pack, 25 mL (6 ea) A-0013 Syringe Pack, 1.0 mL (6 ea) A-0027 Titrettor Pack (1 ea) A-0053 Click here to Buy Now Complete Kits!