Metal ROHS test, plastic ROHS test, halogen test.

RoHS is a general standard for the detection of restricted substances formulated by the European Union. It only detects four kinds of heavy metals and two kinds of flame retardants, not all the restricted substances, nor all of them. ROHS: "Directive on Restricting the Use of Certain Hazardous Substances in Electronic and Electrical Equipment" rohs certification, also known as environmental protection certification, is in line with European and American standards. ROHS I * * * lists six harmful substances ROHS four metals: cadmium lead mercury hexavalent chromium ROHS six nonmetals: cadmium lead mercury hexavalent chromium polybrominated diphenyl ether lead Pb, cadmium Cd, mercury Hg, hexavalent chromium Cr6+, polybrominated diphenyl ether PBDE, polybrominated diphenyl ether 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 (hexavalent). Examples of using this substance: flame retardant, PCB, connector, plastic casing 6 Examples of using this substance: 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 includes: white appliances, such as refrigerators, washing machines, microwave ovens, air conditioners, vacuum cleaners, water heaters and so on. Black household appliances, such as audio-visual products, DVDs, CDs, TV receivers, IT products, digital products, communication products, etc. Power tools, electric electronic toys and medical electrical equipment. RoHS certification cycle RoHS certification cycle: RoHS detection standards and methods for harmful substances are disabled within seven working days. 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 respectively. In principle, the required weight of each component is: solid 10-20g, liquid 10-20ml. At present, most manufacturers make RoHS test reports, disassemble the products into homogeneous materials according to the requirements of the instructions, and then carry out destructive chemical experiments, and finally get specific content values. Second, the chemical detection standard material pretreatment standard test instrument (standard) IEC6232 1 test method remarks pbepa3050b; EPA3052 acid digestion ICP-OES；; ; AASEPA 60 10c part-8； PARR-9； PART- 10 transforms EPA's soil test into polymer test method cden1122: 2001; EPA3052 acid digestion ICP-OES；; ; AASEPA 60 10c part-8； PARR-9； Part-10en1122 is not suitable for lead detection; hgepa 3052 CP-OES

CV-AAS

Mercury in ICP-MSPART-7 can easily escape in the form of gas and must be dissolved in a sealed state. Cr6+EPA 3060 UV-visible light

EPA Annex -C Determination of Hexavalent Chromium in Polymer Materials Cr6+ISO 36 13

Point test; Boiling water extraction; Appendix B Determination of Hexavalent Chromium in Metal Coating PBB/PPBDEEPA3540C:

EPA3550B gas chromatography-mass spectrometry

Soxhlet extraction of EPA 8270CANNEX-A III. Controlled substances and restricted substances.

Cr6+ PBBs

Polybrominated diphenyl ethers

The limit of PBDEs100 ppm1000 ppm1000 ppm1000 ppm1000 ppm.