UL 746B

Standard for Polymeric Materials - Long Term Property Evaluations

1.1 These requirements cover long-term test procedures to be used for the evaluation of materials used for parts intended for specific applications in end products.

1.2 Together with the Standards mentioned in Supplementary Test Procedures, Section 3 , 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.


  • Edition Number: 4
  • Edition Date: 04/04/2013
  • Price Code: B
  • Type: ulstd
  • ANSI Approved: 07/15/2014
  • DOD Approved: 11/03/1988