Because of the large volume of Waste Electrical and Electronic Equipment (WEEE) produced worldwide, and its low rate of reuse and recycling, it was observed that the control and the effective reduction of harmful impacts to the environment produced by a particular product should be performed at the begining of lifecycle, controlling your production process The idea propagated by centuries of the earth s natural resources were inexhaustible no longer holds because these are finite. The growth of cities, added to the great technological advances and population growth in the twentieth and twenty-first, caused negative environmental impacts of great intensity. This context made the European Union (EU) to develop a specific standard, the Restriction of Certain Hazardous Substances (RoHS) Directive for restricting the use of certain hazardous substances in electrical and electronic equipment (EEE) in order in this way ensure a reduction in the poisoning potential due to human handling EEE, as well as reducing of the amount of toxic waste released into the environment. maximum concentration of toxic substances by weight is determined for homogeneous materials, i.e., materials that can not be mechanically divided into various others. Maximum concentration recommended for cadmium is 0.01 percent while for lead, mercury, hexavalent chrome, polybrominated (PBB) and polybrominated diphenyl echers (PBDE) is 0.1 percent.