Van Remmen developed, tested and optimized the Validated series to ascertain a reliable and economic disinfection of water with a transmittance between 80% and 99%. Depending on the transmittance of the water volumes of 0.5m3 /h up to 148m3 /h, can be treated with a UV-C dosage of 300J/ m2. The optimized design resulted in a widely applicable system that for instance can be used for the potable water market, the processing industry, shipping, building utilities, and installation engineering. By performing a validation according to the NEN-EN 14897 standards, the disinfection achievements of Validated systems are measured and really proven, a sound and safe disinfection guarantee.