TDS PDF

Adjustable Drop Nipples for Sprinkler Systems (Edition 5, September 27, 2004). Original standard UL 1474 2004-09 in PDF full version. Additional info + preview on request

Document status: Active

OUTLINE OF INVESTIGATION FOR COMPRESSED GAS SHUTOFF VALVES (Issue 3; published 2011-04-15). Original standard UL 1477 2011-04 in PDF full version. Additional info + preview on request

Document status: Active

Fire Pump Relief Valves (Edition 4, published May 13, 2004; revisions through April 12, 2018; ANSI reaffirmation 2018). Original standard UL 1478 2018-04 in PDF full version. Additional info + preview on request

Document status: Replaced by

Fire Pump Relief Valves (Edition 5, March 17, 2023). Original standard UL 1478 2023-03 in PDF full version. Additional info + preview on request

Document status: Active

Pressure Relief Valves for Sprinkler Systems (Edition 1, published May 20, 2013; revisions through August 4, 2017; ANSI reaffirmation 2017). Original standard UL 1478A 2017-08 in PDF full version. Additional info + preview on request

Document status: Active

Pressure Relief Valves for Sprinkler Systems (Edition 1, published May 20, 2013; revisions through June 17, 2022; ANSI reaffirmation 2022). Original standard UL 1478A 2022-06 in PDF full version. Additional info + preview on request

Document status: Replaced by