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ROHS Certification

The RoHS directive purpose is to limit certain hazardous substances normally used in electronic and electronic equipment. Any ROHS compliant component is tested for the presence of Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent chromium (Hex-Cr), Polybrominated biphenyls (PBB), and Polybrominated diphenyl ethers (PBDE). For Cadmium and Hexavalent chromium, there must be less than 0.01% of the substance by weight at raw homogeneous materials level. For Lead, PBB, and PBDE, there must be no more than 0.1% of the material, when calculated by weight at raw homogeneous materials. Any RoHS compliant component must have 100 ppm or less of mercury and the mercury must not have been deliberately added to the component. In the EU, some military and medical equipment are exempt from RoHS compliance. In particular, though ROHS mostly originated out of discomfort about the use of Lead in manufacturing, it restricts and addresses the use of not just Lead, but also Cadmium, Mercury, Hexavelent Chromium (a carcinogen), and Poly-brominated biphenyls (flame retardants that may cause a variety of health issues) and Poly-brominated biphenyl ethers (another flame retardant that may cause a variety of health issues).

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