Is China's RoHS a mandatory standard? Influence of ROHS certification on electronic products

Date：2022-05-16 15:13:00Views：867

ROHS testing only appears as an instruction. It is not a standard law and regulation, so it is not mandatory. However, if the product is tested with ROHS, it will greatly increase the credibility of the product and improve the value of the product. It is recommended to do ROHS testing. RoHS directive originated in the European Union, with the rise of the production and use of electrical and electronic products (also known as EEE). During the use, handling and disposal of environmental electrical equipment, harmful substances (such as lead and cadmium) may be released, resulting in serious environmental and health problems. RoHS helps prevent such problems. It limits the existence of specific harmful substances in electrical products, and safer alternatives can replace these substances.

RoHS 2.0 test items (RoHS 10 items):

1. Lead (PB), examples of using this substance: solder, glass, PVC, stabilizer;

2. Cadmium (CD), examples of using the substance: switch, spring, connector, shell, PCB, contact, battery;

3. Mercury (Hg), (mercury) examples of using this substance: temperature controllers, sensors, switches and relays, light bulbs;

4. Hexavalent chromium (Cr6 +), examples of using this substance: metal with corrosive coating;

5. Polybrominated biphenyls (PBBs), examples of using this substance: flame retardant, PCB, connector, plastic shell;

6. Polybrominated diphenyl ethers (PBDEs), examples of using this substance: flame retardant, PCB, connector, plastic shell

7. Diisobutyl phthalate (DiBP) is used as plasticizer of PVC, substitute of DBP, plasticizer of cellulose resin, vinyl resin, nitrile rubber and neoprene.

8. Phthalic acid (2-ethylhexyl ester) (DEHP) is mainly used as PVC plasticizer. PVC is used as insulator in electronic and electrical equipment, such as cables and wires. A small amount of DEHP is used for other non polymer applications, such as ceramics of electronic products or electrolyte of capacitors.

9. Dibutyl phthalate (DBP) is mainly used in PVC parts such as cables, sockets, pipes and shock absorbers in combination with other plasticizers. In addition, it is also used in some non polymers such as paints, adhesives, sealants and printing inks.

10. Toluene butyl phthalate (BBP), colorless and transparent oily liquid. Slightly aromatic, used as plasticizer for polyvinyl chloride, vinyl chloride copolymer, cellulose resin, natural and synthetic rubber

Influence of ROHS certification on electronic products

Since 2006, all electrical products sold in the EU market must pass the RoHS compliance test. The RoHS directive covers everything from kitchen appliances (such as toasters and refrigerators) to mobile phones, laptops and lighting. It does not distinguish between EEE used by consumers and EEE used for professional and industrial purposes.

Therefore, if the goods covered by this Directive are manufactured, imported or distributed, the content of harmful substances in the products shall not exceed the allowable level. As an economic side, you need to identify harmful substances in products and find suitable substitutes where possible. If the latter cannot be achieved, the exemption of the rule must be checked. In addition, you need to ensure that your supplier CE certifies the components they provide. I hope this article will help you!