Meeting RoHS/ELV Requirements
The European Union (EU) became concerned with substances that find their way into the drinking water once certain products are discarded in landfills. To address this they came out with two directives:
The Restriction of Hazardous Substances (RoHS) directive covers a broad array of products including large and small household appliances, radios, TVs, video recorders, lighting equipment, electronic tools and electric light bulbs.
The End of Life Vehicle (ELV) directive relates to automobiles.
These directives restrict the use of six hazardous materials in the manufacture of various types of electronic and electrical equipment:
- Lead (Pb)
- Mercury (Hg)
- Cadmium (Cd)
- Hexavalent chromium (Cr6+)
- Polybrominated biphenyls (PBB)
- Polybrominated diphenyl ether (PBDE)
PBB and PBDE are flame retardants used in several plastics. Hexavalent chromium is used in chrome plating, chromate coatings and primers, and in chromic acid.
The industry has developed non-hexavalent / trivalent less toxic alternatives in order to comply with the RoHS legislation. DIFCO offers a variety of Non-Hexavalent Chromates/Passivates.
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