Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements (Includes Revisions 1 and 2, from 2005 and 2008)
standard by Underwriters Laboratories, 05/11/2012
Fire Test of Pneumatic Tubing for Flame and Smoke Characteristics
standard by Underwriters Laboratories, 10/15/2004
Type EB and a Rigid PVC Conduit and HDPE Conduit
standard by Underwriters Laboratories, 10/26/2011