UL Subject 971
Standard for Nonmetallic Underground Piping for Flammable Liquids (Bulletin, 4/21/2000)
standard by Underwriters Laboratories, 04/21/2000
UL 2360
Test Methods for Determining the Combustibility Characteristics of Plastics Used in Semi-Conductor Tool Construction
standard by Underwriters Laboratories, 01/01/2000
UL 1666
Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts
standard by Underwriters Laboratories, 01/01/2000
UL 1203
Explosion-Proof and Dust-Ignition Electrical Equipment for Use in Hazardous (Classified) Locations
standard by Underwriters Laboratories, 01/01/2000
UL Subject 181B
Standard for Closure Systems for Use With Flexible Air Ducts and Air Connectors (Bulletin, 12/23/1999)
standard by Underwriters Laboratories, 12/23/1999