UL 1709 PDF
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Rapid Rise Fire Tests of Protection Materials for Structural Steel
1 Scope
1.1 This Standard describes a full-scale test method for measuring the thermal resistance of protective materials, systems, or constructions to rapid-temperature-rise fires.
1.2 Part 1 of this Standard describes the furnace calibration and furnace control requirements.
Summary of Topics
This revision of ANSI/UL 1709 dated July 8, 2024 includes the following changes in requirements:
– Fire Test Procedures for Passive Fire Protection Systems for Critical Process Control Equipment (CPCE); Part 3, Section 18 – 24, and Annex C – Annex E
– Fire Resistance Rating Procedures for Hollow Section Column Tests with Reactive Materials; 8.5 – 8.7, 16.5A, Section A5





