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Description Quaternary ammonium compounds are widely used for the disinfection of medical devices & surfaces and cooling circuits in air conditioning systems. These QAC test strips can ensure that the concentration of disinfectant & sanitising solutions is sufficient to ensure safe disinfection. This wide range quaternary ammonium compounds (QAC) test strip measures the levels from 1-1500 ppm (mg/l). It is ideal to check for levels of QAC when testing stronger solutions that kill pathogenic organisms. Simple Dip-Wait-Read Testing Method Test strips are stored in a sealed pouch with instructions and a colour chart to protect them Ideal for quick and reliable testing of water Accurate results in a few seconds This product is safe and easy to use since there are no chemicals to mix, an MSDS is not required Suitable for: fresh water, ideal for water filtration, disinfection & sanitising Contains: 50 strips Sensitivity: 0, 200, 400, 750, 1000, 1500 ppm (mg/l) How to Use: Dip the strip briefly into the water sample and remove quickly. Immediately compare colour change to closest colour on colour chart. Complete matching within 5 seconds. Recommended use at room temperature (see interferences for more details). Total Test Time: 5 seconds Interferences: Formula additives can adversely influence the results. Use with formulations other than Oasis 146 should be verified first. Testing at room temperature is recommended. Temperatures of 32 – 43˚C (90–110˚F) can cause strips to read up to ½ unit high. Temperatures above 43˚C (110˚F) can shift the results 1 unit high.  Hard water (above 500 ppm) can cause the strips to read high, up to 1 unit. This strip utilises an effect commonly referred to as the “protein-error of indicators” to quantify the QAC ppm levels. Using proteins, the technique utilises pH indicators and buffering systems to create an environment where the test strip reacts (develops colour) proportional to the amount of analyte (QAC) present. The QAC test strips have colour charts calibrated to solutions prepared from OASIS 146, an industry standard QAC product. The performance of the papers and strips with alternate QAC products should always be verified. In addition, any additives should be evaluated to see if they contribute to the “protein-error” effect. The QAC test strips have been calibrated for use with all the commonly used hyamine and steramine quat (quaternary ammonium chloride) solutions. (Some other commercially available strips have errors as high as 50%.)   General description: For semi-quantitative determinations. Detection method: colorimetric. Fast, simply dip and read indicator paper. Consists of a plastic strip with attached sealed test paper. Compare colour change of test paper with fields of equal size on colour chart provided. Please note:  Store in a cool, dry place (between 20- 30°C) and away from excess heat and direct sunlight. Keep away from children and pets. Avoid contact of test areas on strips with skin & eyes, do not ingest or expose to acids. Do not touch test pad. This is a screening test and can not be used to certify water as safe or unsafe for drinking. It provides approximate results ONLY when used in strict accordance with instructions. SimplexHealth expressly disclaims any liability resulting from the use of this product, failure to follow instructions, or reliance of test results. This is not a measuring instrument. This product is not intended to diagnose, treat or monitor any medical condition. Wash hands before and after use. The contents of the kit should not come in contact with food or consumables. Once the test has been completed, dispose of it responsibly.   MPN: SH1039(50T)