NFPA 265:2023

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. 1.4 Summary of Method. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. (Reserved) 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 Test Equipment 4.1 Ignition Source. 4.2 Compartment Geometry and Construction. Chapter 5 Specimen Mounting and Installation 5.1 Specimen Mounting. 5.2 Specimen Installation. 5.3 Conditioning of Specimen. Chapter 6 Environmental Conditions 6.1 Fire Room Environment. 6.2 Building Environment. Chapter 7 Instrumentation 7.1 Room Instrumentation. 7.2 Canopy Hood and Exhaust Duct. 7.3 Instrumentation in Exhaust Duct. Chapter 8 Calibration 8.1 Calibration and Documentation of Ignition Source and Test Equipment. 8.2 Calibration. 8.3 Smoke Measurement Calibration. 8.4 Gas Analyzers Calibration. Chapter 9 Test Procedure 9.1 Method. 9.2 Procedure. Chapter 10 Calculations 10.1 Flow Rate Equations. 10.2 Smoke Measurement Equations. 10.3 Release Rate of Combustion Gases. 10.4 Symbols. Chapter 11 Documentation 11.1 Report. 11.2 Materials. 11.3 Burner Gas Flow. 11.4 Time History of the Total Heat Flux to Floor. 11.5 Time History of the Gas Temperature. 11.6 Time History of the Rate of Heat Release of the Fire. 11.7 Time History of the Fire Growth. 11.8 Time History of Smoke Obscuration. 11.9 Discussion of Performance. Annex A Explanatory Material Annex B Acceptance Criteria Annex C Method A Test Protocol Annex D Informational References

This standard describes a method for determining the contribution of textile wall coverings to room fire growth during specified fire exposure conditions, thereby facilitating the selection of fire-resistant materials and increasing safety.