Purak anti-limescale was tested by LAMI (Laboratory of Industrial Measurements) of the Faculty of Engineering in the "University of Cassino and Southern Lazio", with test report n.185/11, which concludes the test by saying:

From this survey it can be concluded that, despite the low content of calcite found in the various samples, the ones not treated with the magnetic field showed relatively high values, while in those previously subject to a magnetic field, calcite was present in traces or practically absent. It is interesting to note that the content of calcite resulted higher in the precipitate obtained at a lower temperature (60 ° C) and in the absence of magnetic field. This result is of interest for further investigation.