Testing Labs and Agencies
| UL Laboratories | Testing agency started by the insurance industry to ensure product safety in the US. |
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| VDE Laboratories | German version of UL Labs. Of the many European standards, VDE is generally considered the strictest and most universally accepted. |
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| NEMA | National electrical manufacturers association defines standards for electrical industry products and installations. |
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| TUV Laboratories | US Testing facility for VDE standards. Products which carry the TUV mark have been tested to VDE specs but not by VDE. |
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| DSCC | Defense electronics Supply Center in Ohio. Electronics
procurement and standardization arm of the U.S. Military |