Restriction of Hazardous Substances (ROSH) came into force on July 1, 2006
The ROSH is mainly used to regulate the material and process standards of electrical and electronic products
To make them more conducive to human health and environmental protection
The standard aims to eliminate lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBBs) and polybrominated diphenyl ethers (PBDEs)
and focuses on the content of lead, which should not exceed 0.1%.
There are 102 products in 10 categories included in the management of hazardous substances restriction and end-of-life recycling management
The first seven categories of products are China's main export electrical products
Including large household appliances, small household appliances, information and communications equipment, consumer products, lighting equipment, electrical and electronic tools, toys, leisure and sports equipment, medical equipment (except for products implanted or infected products), monitoring and control instruments, vending machines.
The RoHS Directive restricts the use of the following six hazardous substances
1 Mercury (Hg) Examples of the use of this substance: thermostats, sensors, switches and relays, light bulbs
2 Lead Examples of the use of this substance: solder, glass, PVC stabilizers
3 Cadmium Examples of the use of this substance: switches, springs, connectors, housings and PCBs, Contacts, batteries
4 Chromium (hexavalent) Examples of the use of this substance: corrosion-resistant coatings on metals
5 Polybrominated biphenyls (PBB) Examples of the use of this substance: flame retardants, PCBs, connectors, plastic housings
6 Polybrominated diphenyl ethers (PBDE) Examples of the use of this substance: flame retardants, PCBs, connectors, plastic housings
Tests Principle:
In accordance with the requirements of the EU WEEE&RoHS Directive, AOV is to split the product according to the material, and test for hazardous substances separately with different materials. Generally speaking:
6.1 Metal materials need to test four kinds of harmful metal elements such as (Cd cadmium / Pb lead / Hg mercury / Cr6 + hexavalent chromium) 6.1 Plastic materials in addition to checking the four kinds of hazardous heavy metal elements need to test brominated flame retardants (polybrominated biphenyls PBB / polybrominated diphenyl ethers PBDE) 6.1 At the same time, packaging materials of different materials need to be carried out separately. Packaging materials are also tested for heavy metals (94/62/EEC)The following are the upper limit concentrations of six hazardous substances specified in RoHS:
Cadmium: less than 100ppm
Lead: less than 1000ppm
Steel alloys: less than 2500ppm
Aluminum alloys: less than 4000ppm
Copper alloys: less than 400ppm
Copper alloys: less than 4000ppm
Copper alloys: less than 4000ppm
Mercury: less than 1000ppm
Hexavalent chromium: less than 1000ppm