Underwriters Laboratories

Established in 1894 as the Underwriters' Electrical Bureau, UL is a global safety consulting and certification company, approved to perform safety testing by the U.S. federal agency of Occupational Safety and Health Administration.

Documents by this publisher

Series details	Title	Year	Status
ANSI/CAN/ULC 125-20	Flow control valves for anhydrous ammonia and LP-gas	2020	Current
ANSI/CAN/ULC 312-22	Check valves for fire-protection service	2022	Current
ANSI/CAN/UL 132-21	Safety relief valves for anhydrous ammonia and LP-gas	2021	Current
ANSI/CAN/UL 793-20	Automatically operated roof vents for smoke and heat	2020	Current
UL 1-05	Flexible metal conduit	2005	Current
UL 4-04	Armored cable	2004	Current
UL 5-16	Surface metal raceways and fittings	2016	Current
UL 5A-15	Nonmetallic surface raceways and fittings	2015	Current
UL 6-07	Standard for electrical rigid metal conduit - steel	2007	Withdrawn
UL 6-22	Standard for electrical rigid metal conduit - steel	2022	Current
UL 6A-08	Electrical rigid metal conduit - aluminum, red brass, and stainless steel	2008	Current
UL 8-16	Water based agent fire extinguishers	2016	Current
UL 9-09	Standard for fire tests of window assemblies	2009	Current
UL 10B-08	Standard for fire tests of door assemblies	2008	Current
UL 10C-16	Positive pressure fire tests of door assemblies	2016	Current
UL 10D-17	Fire tests of fire-protective curtain assemblies	2017	Current
UL 19-18	Standard for lined fire hose and hose assemblies	2018	Current
UL 20-18	General use snap-switches	2018	Withdrawn
UL 20-25	General use snap-switches	2025	Current
UL 33-21	Heat responsive links for fire-protection service	2021	Current