TDS PDF

Supplemental Requirements for Extra Heavy Wall Reinforced Thermosetting Resin Conduit (RTRC) and Fittings (Edition 1, published November 21, 2011; revisions through December 13, 2019). Original standard UL 2515A 2019-12 in PDF full version. Additional info + preview on request

Document status: Active

Supplemental Requirements for Extra Heavy Wall Reinforced Thermosetting Resin Conduit (RTRC) and Fittings (Edition 1, published November 21, 2011; revisions through November 28, 2023; ANSI reaffirmation 2023). Original standard UL 2515A 2023-11 in PDF full version. Additional info + preview on request

Document status: Active

Compressed Gas Regulators (Edition 10, published September 15, 2017; revisions through August 10, 2018). Original standard UL 252 2018-08 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 252 2025-02

Compressed Gas Regulators (Edition 11, published October 27, 2022; revisions through February 28, 2025). Original standard UL 252 2025-02 in PDF full version. Additional info + preview on request

Document status: Active

Solid Fuel-Fired Hydronic Heating Appliances, Water Heaters, And Boilers (Edition 1, published December 22, 2009; revisions through October 20, 2022). Original standard UL 2523 2022-10 in PDF full version. Additional info + preview on request

Document status: Active

Emergency Responder Communication Enhancement Systems (Edition 3, March 22, 2024). Original standard UL 2524 2024-03 in PDF full version. Additional info + preview on request

Document status: Active