Covers long-term test procedures to be used for the evaluation of materials used for parts intended for specific applications in electrical end products.These investigations provide data with respect to the physical, electrical, flammability, thermal, and other properties of the materials under consideration and are intended to provide guidance for the material manufacturer, the molder, the end-product manufacturer, safety engineers, and other interested parties.
UL 746B BULLETIN-2008 history
1970UL 746B-2022 Polymeric materials; long term property evaluations
2019UL 746B BULLETIN-2019 UL Standard for Safety Polymeric Materials - Long Term Property Evaluations (COMMENTS DUE: March 11@ 2019)
2018UL 746B-2018 Polymeric materials; long term property evaluations
2013UL 746B-2013 Polymeric materials - Long term property evaluations
2010UL 746B BULLETIN-2010 SUMMARY OF TOPICS The following changes in requirements to the Standard for Polymeric Materials - Long Term Property Evaluations, UL 746B, are being proposed: 1. Generic Thermal Index for Polyethersulfone (PES)
2008UL 746B BULLETIN-2008 UL Standard for Safety Polymeric Materials - Long Term Property Evaluations
1996UL 746B-1996 UL Standard for Safety Polymeric Materials - Long Term Property Evaluations Third Edition; Reprint with Revisions Through and Including 02/16/2006
1979UL 746B-1979 Polymeric materials; long term property evaluations