UL 539 PDF
Original price was: $505.00.$303.00Current price is: $303.00.
UL Standard for Safety Single and Multiple Station Heat Alarms – Eighth Edition; Reprint with revisions through and including January 14, 2025
1 Scope
1.1 These requirements cover heat-actuated, single and multiple station heat alarms intended for indoor installation in accordance with:
- a) In Canada:
- 1) The National Building Code of Canada,
- 2) The National Fire Code of Canada,
- b) In the United States:
- 3) The National Fire Alarm and Signaling Code, NFPA 72
Summary of Topics
This revision of ANSI/UL 539 dated January 14, 2025 includes alignment of Maximum Ambient Temperature of Heat Alarms with NFPA 72: Table 7.1 and 7.2A.
| Edition | 8 |
|---|---|
| Published Date | June 23, 2022 |
| Last Revision | January 14, 2025 |
| Language | English |
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