Per OSHA, a Nationally Recognized Testing Laboratory (NRTL) is an independent third-part laboratory recognized by the United States Occupational Safety and Health Administration (OSHA) to test and certify products to applicable product safety standards.

Examples of NRTLs include UL, CSA, and TUV.

Many SIGLENT products are TUV certified, which also covers UL and CSA requirements.

To find out if a specific product is TUV certified, you can check the latest on the TUV website:

Certificate Explorer| TÜV SÜD