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Archive | Terminology

Similar to a dictionary for UL Terms, except it has articles. So actually more like an encyclopedia for UL Terms.

A Tale of Two Thermals

Direct Thermal Labels

Direct thermal and thermal transfer both use heat for imaging, but only one is approved for UL 969 labels. Do you know the difference? Admittedly because they sound similar, they can be easily confused. But each process requires very different materials–there is no one material fits all approach. In addition, permanency of the image varies wildly between the […]

NRTLs rhymes with Turtles

Slitting Anvil

Who or what are NRTLs and why should we care? Well the Nationally Recognized Testing Laboratory (NRTL)1 Program is a managed by the Occupational Safety & Health Administration (OSHA)2. OSHA was created in 1970 by Congress with the mission of overseeing working conditions and training in the United States. The majority of OSHA’s regulations fall into the category of general […]