TDS PDF

Fluorescent Lamp Starters (Edition 9, published July 11, 2005; revisions through December 11, 2018; ANSI reaffirmation 2018). Original standard UL 542 2018-12 in PDF full version. Additional info + preview on request

Document status: Active

Fluorescent Lamp Starters (Edition 9, published July 11, 2005; revisions through October 31, 2023; ANSI reaffirmation 2023). Original standard UL 542 2023-10 in PDF full version. Additional info + preview on request

Document status: Active

Medical and Dental Equipment (Edition 4, published December 30, 1998; revisions through June 16, 2000). Original standard UL 544 2000-06 in PDF full version. Additional info + preview on request

Document status: Active

Remote Software Updates (Edition 1, September 6, 2018). Original standard UL 5500 2018-09 in PDF full version. Additional info + preview on request

Document status: Active

Transformer-Type Arc-Welding Machines (Edition 8, published April 24, 2009; revisions through January 8, 2018; ANSI reaffirmation 2018). Original standard UL 551 2018-01 in PDF full version. Additional info + preview on request

Document status: Active

Fire Dampers (Edition 7, published July 12, 2006; revisions through October 9, 2020). Original standard UL 555 2020-10 in PDF full version. Additional info + preview on request

Document status: Replaced by