UL 2901 PDF
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UL Standard for Safety Antifreeze Solutions for Use in Fire Sprinkler Systems – First Edition; Reprint with Revisions Through and Including May 5, 2026
1 Scope
1.1 This standard covers requirements for the performance of antifreeze solutions for fire sprinkler systems.
1.2 These solutions are intended for use in wet pipe sprinkler systems subject to freezing for installation in accordance with the manufacturer’s design and installation instructions, Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, NFPA 13D, Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies, NFPA 13R, and the Standard for Installation of Automatic Sprinkler Systems, NFPA 13; and inspected, tested and maintained in accordance with the Standard for Inspection, Testing and Maintenance of Water Based Fire Protection Systems, NFPA 25.
1.3 This standard does not contain requirements to evaluate the risk associated with products of combustion of antifreeze solutions.
Summary of Topics
The revision of ANSI/CAN/UL 2901 dated December 6, 2022 includes pipe size required for compatibility testing; 15.2.
| Edition | 1 |
|---|---|
| Published Date | September 03, 2019 |
| Last Revision | May 05, 2026 |
| Language | English |






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