RoHS certified

RoHS is a mandatory standard formulated by EU legislation, its full name is "Restriction of Hazardous Substances" (Restriction of Hazardous Substances). The standard has been officially implemented since July 1, 2006, mainly used to regulate the material and process standards of electrical and electronic products, making it more conducive to human health and environmental protection. The purpose of this standard is to eliminate lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products (Note: the correct Chinese name of PBDE refers to polybrominated diphenyl ethers, and polybrominated diphenyl ethers are false statements ) a total of 6 substances, and the key point is that the content of lead cannot exceed 0.1%.

Restricted Toxic Substances:

Heavy metal:

-Lead lead;

- Mercury Mercury;

-Cadmium Cadmium;

-Chromium (VI) hexavalent chromium.

Some brominated flame retardants:

Polybrominated biphenyls - Polybrominated biphenyls (PBB's);

Polybrominated diphenyl ethers - Polybrominated diphenyl ethers (PBDE's).

The RoHS Directive restricts the use of the following six categories of hazardous substances:

1. Lead (Pb) Examples of the use of this substance: solder, glass, PVC stabilizer

2. Mercury (Hg) (mercury) Examples of uses of this substance: thermostats, sensors, switches and relays, light bulbs

3. Cadmium (Cd) Examples of uses of this substance: switches, springs, connectors, housings and PCBs, contacts, batteries

4. Hexavalent Chromium (Cr 6+ ) Examples of the use of this substance: Corrosion coating 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

According to the requirements of the EU WEEE & RoHS directive, CES is to split products according to materials, and use different materials to detect harmful substances. Generally speaking:

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

In addition to checking these four harmful heavy metal elements, plastic materials also need to detect brominated flame retardants (polybrominated biphenyls PBB/polybrominated dibenzyl ethers PBDE)

At the same time, packaging materials of different materials also need to be tested for heavy metals in packaging materials (94/62/EEC)

The following are the upper limit concentrations specified in RoHS for the six hazardous substances:

Cadmium: less than 100ppm

Lead: less than 1000ppm

Less than 3500ppm in steel alloy

Less than 4000ppm in aluminum alloy

Less than 40000ppm in copper alloy

Mercury: less than 1000ppm

Hexavalent chromium: less than 1000ppm

The maximum limit indicators are:

Cadmium: 0.01% (100 ppm);

· Lead, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers: 0.1% (1000 ppm).

RoHS targets all electrical and electronic products that may contain the above six hazardous substances in the production process and raw materials, mainly including: daily home appliances, such as refrigerators, washing machines, microwave ovens, air conditioners, vacuum cleaners, water heaters, etc.; black home appliances, such as audio and video products , DVD, CD, TV receivers, IT products, digital products, communication products, etc.; electric tools, electric electronic toys, medical electrical equipment

The above is the information about the harmful substances restricted by RoHS certification, the testing principles, and the specific products involved. I believe everyone has a basic understanding of this. Regarding professional issues If you have any questions, you can contact the professionals below to answer your questions, I hope it will help you.