This kit tests for QAC using the Direct Reading Titrator method. Range and sensitivity is 0-1,000 ppm/20 ppm, 0-5,000 ppm/100 ppm with dilution.

A masked bromphenol blue indicator is added to the sample and turns green. Sodium tetraphenylboron is added to complex the QAC and the color changes to red. This method is best suited to higher QAC concentrations.

Too Shallow for a Secchi Disk? Turbidity is easily measured by using a standardized turbidity reagent to match the turbidity of a water sample. All the necessary apparatus and reagents needed to test four basic water quality test factors and detailed instructions are housed in a secure foam insert within a rugged field carrying case. Economical reagent refill packages are available for either the entire outfit or individual reagents.

This COD heater block features digital microprocessor control, programmable timer and temperature settings, and a dual LED display to monitor both temperature and timer. Perfect for COD, Total Phosphorus, and Total Nitrogen testing PLUS other tests requiring digestion.

Popular AR-02 outfit provides tests for Hardness, Iron, and pH. Drop count tests for Hardness (10 ppm or 1 gpg/drop). Octa-Slide tests for Iron (0.5-10 ppm) and pH (5.0-10). Includes 100 tests for Iron and 50 tests for each pH and Hardness.