FERI-TRI has a chemical laboratory for inspecting the quality of their products and merchandise,  a processs which is done daily for both incoming and outgoing goods. 

An additional daily task of the company’s laboratory is the quality inspection of its customers’ gray water and waste. In this way, it can suggest the most appropriate method, and the correct quality standard, so as to achieve an optimum result. In fact, in special cases, and if requested, FERI-TRI conducts random inspections and takes samples of their customers’ waste with the aim of carrying out laboratory tests and evaluating the effectiveness of alternative products or mixtures of these.

In addition, there exists a direct cooperation with a certified external laboratory, for those tests which are the most demanding, so that the company maintains an opinion about any quality standard that may be requested or may need to be determined.