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Rohs six items

Release time: 2018-03-13
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Announcer: 
The RoHS directive restricts the use of the following six categories of harmful substances1. Examples of lead (Pb) using this substance: solder, glass, PVC stabilizer2. Examples of mercury (Hg) using this substance include temperature controllers, sensors, switches and relays, and light bulbs3. Examples of cadmium (Cd) using this substance: switches, springs, connectors, housings and PCBs, contacts, batteries4. Example of hexavalent chromium (Cr 6+) using this substance: metal corrosion coating5. Examples of polybrominated biphenyls (PBB) using this substance: flame retardants, PCBs, connectors, plastic shells6. Examples of polybrominated diphenyl ethers (PBDE) using this substance: flame retardants, PCBs, connectors, plastic shellsTesting principles:According to the WEEE&RoHS directive of the European Union, AOV separates products based on materials and conducts harmful substance testing on different materials. Generally speaking:Metal materials need to be tested for four harmful metal elements, such as Cd cadmium/Pb lead/Hg mercury/Cr6+hexavalent chromiumIn addition to inspecting these four harmful heavy metal elements, plastic materials also need to be tested for brominated flame retardants (PBB/PBDE)·At the same time, packaging materials of different materials also need to be tested for heavy metals separately (94/62/EEC)The following are the upper limit concentrations specified for six harmful substances in RoHS:Cadmium: less than 100ppmLead: less than 1000ppmLess than 3500ppm in steel alloysLess than 4000ppm in aluminum alloyLess than 40000 ppm in copper alloyMercury: less than 1000ppmHexavalent chromium: less than 1000ppm


More information：Detailed understanding of ROHS information
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