ROHS certification is environmental protection certification. This test is mainly aimed at electronic information products, so that they can not contain lead, mercury, cadmium, hexavalent chromium, polybrominated diphenyl ether and polybrominated biphenyl and other toxic and harmful substances.
On January 27, 2003, the European Parliament and the Council of the European Union adopted the 2002/95/EC Directive, namely the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS Directive). The basic contents are as follows: Since July 1, 2006, six harmful substances, such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl pyrocondensation tube (PBB) and polybrominated diphenyl ether (PBDE), have been restricted in the new electronic and electrical equipment products put into the market. Since the RoHS Directive was issued, it has become a formal law within the scope of the EU since February 13, 2003; before August 13, 2004, EU member states have been converted into their own laws/regulations; on February 13, 2005, the European Commission reviewed the scope of the Directive and formulated additional items of banned substances list taking into account the development of new science and technology; after July 1, 2006, the EU market will be formalized. It is forbidden to sell products with excessive content of six substances.
Four harmful metal elements (Cd, Cd, Pb, Pb, Hg, Hg, Cr6 + hexavalent chromium) should be tested for metal materials.
In addition to inspecting these four harmful heavy metal elements, the plastic materials also need to be tested for brominated flame retardants (PBB/PBDE)
At the same time, different packaging materials also need to be tested for heavy metals in packaging materials (94/62/EEC)
The following are the maximum concentrations of six harmful substances in RoHS:
Cadmium: less than 100 ppm
Lead: less than 1000 ppm (steel alloy less than 2500 ppm, aluminum alloy less than 4000 ppm, copper alloy less than 40000 ppm)
Mercury: less than 1000 ppm
Hexavalent chromium: less than 1000ppm
PBB: less than 1000ppm
PBD of polybrominated diphenyl ether: less than 1000ppm
RoHS Specific Products
RoHS aims at electrical and electronic products that may contain the above six harmful substances in all production processes and raw materials.