ROHS testing

Since the ROHS Directive was issued, it has become an official law within the EU since February 13, 2003. Prior to 13 August 2004, EU Member States switched national laws/regulations; On February 13, 2005, the European Commission re-examined the scope of the Directive, and considered the factors of the development of new science and technology, and proposed the addition of prohibited substances list items; After 1 July 2006, products containing excessive amounts of six substances will be officially banned in the European Union market.

Starting from July 1, 2006, the electronic information products listed in the key pollution prevention and control catalogue of electronic information products shall not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl ether, polybrominated biphenyl ether and other toxic and harmful substances. For a period of time before July 1, 2006, the Chinese government required manufacturers of electronic information products to implement measures to reduce the production of toxic and hazardous substances and actively seek alternatives.

Metal materials should be tested for four hazardous metal elements such as (Cd cadmium /Pb lead /Hg mercury /Cr6+ hexavalent chromium)

In addition to the four hazardous heavy metal elements, plastic materials should also be tested for brominated flame retardants (PBB/ PBDE).

At the same time, packaging materials of different materials should be tested separately for heavy metals (94/62/EEC).

The following are the RoHS upper limits for the six hazards:

* Cadmium: less than 100ppm

Lead: less than 1000ppm (less than 2500ppm in steel alloy, less than 4000ppm in copper alloy, less than 4000ppm)

* Mercury: less than 1,000 parts per million

* Hexavalent chromium: less than 1000ppm

* Polybrominated biphenyls PBB: less than 1000ppm

* Polybrominated diphenyl ether PBD: < 1000ppm

Products: home appliances, bathroom products, building materials products.