What is the meaning of ROHS?

RoHS certification is an English abbreviation for restricting the use of certain harmful substances in electronic and electrical equipment. It stipulates that if electronic and electrical products contain harmful heavy metals such as lead, cadmium, mercury, hexavalent chromium, polybrominated diphenyl ethers and polybrominated biphenyls, the EU will ban the import from July 1 2006. 1. What is RoHS? RoHS is the abbreviation of restricting the use of certain harmful substances in electronic and electrical equipment. Rohs certification, also known as environmental protection certification, conforms to European and American standards. 2. What are the harmful substances? RoHS-* * lists six harmful substances, including lead Pb, cadmium Cd, mercury Hg, hexavalent chromium Cr6+, PBDE and PBB. RoHS directive restricts the use of the following six harmful substances: 1 mercury (mercury) Examples of using this substance: thermostat, sensor, switch and relay, light bulb 2 Examples of using this substance: solder, glass, PVC stabilizer 3 Examples of using this substance: switch, spring, connector, casing and PCB, contact, battery 4 Examples of using this substance 4 Chromium (hexavalent): metal. Examples of using this substance: flame retardant, PCB, connector and plastic casing 6 Examples of using this substance: Why should RoHS PBDE introduced? In 2000, when cadmium was found in the cables of some game machines sold in the Dutch market, people first noticed that electrical and electronic equipment contained heavy metals harmful to human health. In fact, solder and ink printed on packaging boxes widely used in the production of electrical and electronic products all contain harmful heavy metals such as lead. 4. When will 4.RoHS be implemented? The EU will implement RoHS on July 1 2006. At that time, electrical and electronic products using or containing heavy metals and flame retardants (such as PBDE and PBBs) will not be allowed to enter the EU market. 5. What products does 5.RoHS specifically involve? RoHS is aimed at all electrical and electronic products that may contain the above six harmful substances in the production process and raw materials, mainly including: white goods, such as refrigerators, washing machines, microwave ovens, air conditioners, vacuum cleaners, water heaters, etc. Black household appliances, such as audio-visual products, DVDs, CDs, TV receivers, IT products, digital products, communication products, etc. Power tools, electric electronic toys, medical electrical equipment. How is RoHS progressing at present? Some big companies have noticed RoHS and started to take countermeasures. For example, Sony's digital camera, the box has indicated that this product uses lead-free welding; Print with lead-free ink. In 2004, the Ministry of Information Industry also promulgated the Administrative Measures for Pollution Prevention and Control of Electronic Information Products, which is similar to RoHS, and established the Working Group on Pollution Prevention and Control Standards of Electronic Information Products in 10 to study and establish a standard system for pollution prevention and control of electronic information products in line with China's national conditions. To carry out research and revision of the relevant standards for pollution prevention and control of electronic information products, especially to speed up the formulation of basic standards such as materials, processes, terms, test methods and test means urgently needed by the industry. 7. The Impact of 7.RoHS on China's Electronic Industry According to the latest data of China Electrical Apparatus Industry Association, in the first quarter of 2004, the export of mechanical and electrical products from China accounted for 55% of China's exports. The EU has become the main export market of mechanical and electrical products in China. Due to the backward environmental protection concept and technical level of China manufacturers, RoHS directive makes China's nearly $27 billion mechanical and electrical products face the environmental protection barrier of EU. China government has been paying close attention to and studying the countermeasures, and the State Council has specially instructed the Ministry of Information Industry to study and respond to the EU environmental protection directive. The Management Measures for Pollution Prevention and Control of Electronic Information Products formulated by the Ministry of Information Industry according to the Cleaner Production Promotion Law and the Law on the Prevention and Control of Environmental Pollution by Solid Wastes have been completed and come into force on June 5438+1 October1day, 2005. The Administrative Measures for Pollution Prevention and Control of Electronic Information Products stipulates that electronic information products listed in the Key Catalogue of Pollution Prevention and Control of Electronic Information Products shall not contain toxic and harmful substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated diphenyl ethers and polybrominated diphenyl ethers from July 1 2006. Before July 1 day, 2006, the government of China asked the manufacturers of electronic information products to take measures to reduce the production of toxic and harmful substances and actively look for substitutes. At the same time, an organization named "Working Group on Pollution Prevention and Control Standards for Electronic Information Products" has also begun to prepare for its establishment. Its main task is to study and formulate the pollution prevention and control standards of electronic information products in line with China's national conditions, and to carry out the research and formulation of relevant standards for pollution prevention and control of electronic information products, especially to speed up the formulation of basic standards such as urgently needed materials, processes, test methods and experimental methods. The difference between RoHS price and non-RoHS price (according to the official statement) is generally around 15%~30%, but in general, it has to be handled according to its own products. 8.RoHS certification cycle RoHS certification cycle: seven working days. RoHS prohibits the detection standards and methods of harmful substances (the detection methods currently used are the industry default methods, which are not mandatory for the EU) 9. The detection method is 1, and the limit value of heavy metal cadmium RoHS is 100PPM. The detection standard is EN 1 122. Put the sample cut into small pieces into a beaker, add concentrated sulfuric acid and heat until the sample is completely dissolved; B, taking the beaker off the heating plate, cooling, adding hydrogen peroxide c, repeating step b, taking the beaker off the heating plate after the reaction liquid is no longer foamed and clarified, cooling d, filtering the solution, quantifying the filtrate with deionized water, and detecting with an inductively coupled plasma code emission spectrometer. 2. The RoHS limit value of heavy metal lead is 1000PPM. Test standard: American EPA3050B Method: A. Put the sample into a beaker, add HN03 for heating, cool it at room temperature, and add H202 for heating until the reaction is completed. Repeat step b d, cooling at room temperature, adding HCl to raise the temperature, filtering the cooling liquid, quantifying with deionized water, and then coupling with inductance. 3. The RoHS limit of heavy metal mercury is 1000PPM. Test standard: American EPA3052 method: A, cut the sample into pieces and put it into a microwave digestion bottle, add nitric acid and hydrofluoric acid B, put the microwave digestion bottle into the microwave digestion bottle to react until C is completely dissolved, filter the solution, and quantify the filtrate with deionized water. Then the heavy metal-hexavalent chromium was detected by inductively coupled plasma atomic emission spectrometer. RoHS limit is 1000PPM. The test standard is US EPA 3060a &: 7 196A 5, and the RoHS limit value of bromine flame retardant is 1000PPM. Test standard: US EPA 3540c 10. The significance of RoHS implementation lies in promoting environmental protection and energy saving in cooperation with WEEE directive. WEEE is the abbreviation of waste electronic and electrical equipment. This directive was put forward by the European Parliament and the Council, and was enforced by EU member states on August 13, 2005. Its main purpose is to prevent the generation of waste, and secondly to facilitate the recovery, reuse and remanufacturing of waste and reduce the waste of resources. 1 1. The EU member countries involved in RoHS are Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal, Spain, Sweden, Britain, Slovenia, Cyprus, Malta, Poland, the Czech Republic, Estonia and the United States. Liechtenstein 12. The manufacturer of ROHS certified test samples shall disassemble and package the products submitted for inspection in advance, and mark the product name and number on each package. In principle, the weight required for each component test is: solid 10-20g, liquid 10-20mg.