2951HR High Range QAC test papers are specifically formulated to read high range levels of QAC. Range and sensitivity is 200, 400, 600, 1000, 1500 ppm.
A kit from Solvay for the determination of for the determination of tetrakishydroxymethyl phosphonium sulfate (THPS). The iodometric titration may be used for fresh or salt water in oilfields, towers, pulp and paper, etc.