RoHS is the Restriction of the use of certain hazardous substances in electrical and electronic equipment (the Restriction of the use of certain hazardous substances in electrical and electronic equipment) of the English acronym.
RoHS I*** lists six hazardous substances, including: Lead Pb, Cadmium Cd, Mercury Hg, Hexavalent Chromium Cr6+, Polybrominated Diphenyl Ethers PBDE, Polybrominated Biphenyls PBB.
Restriction of Substances Limit (mg/kg)
Cd (Cadmium) 100
Pb (Lead) 1000
Hg (Mercury) 1000
Cr6+ (hexavalent chromium) 1000
PBB (polybrominated biphenyls) 1000
PBDE (polybrominated diphenyl ethers) 1000,
RoHS is aimed at all electrical and electronic products that may contain the six hazardous substances mentioned above during the production process and in the raw materials, which mainly include: white goods such as refrigerators, washing machines, microwave ovens, air-conditioners, vacuum cleaners and other household appliances. The main categories include: white goods, such as refrigerators, washing machines, microwave ovens, air conditioners, vacuum cleaners, water heaters, etc.; black goods, such as audio and video products, DVDs, CDs, TV receivers, IT products, digital products, communication products, etc.; power tools, electric and electronic toys, and medical and electrical equipment.