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NFPA 257:2022

Current
Current

The latest, up-to-date edition.

Standard on Fire Test for Window and Glass Block Assemblies
Available format(s)

Hardcopy

Language(s)

English

Published date

01-01-2022

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Units. 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 Control of Fire Test 4.1 Temperature–Time Curve. 4.2 Furnace Temperatures. 4.3 Furnace Pressure. Chapter 5 Fire Window Assembly 5.1 Construction and Size. 5.2 Mounting. 5.3 Test Wall. Chapter 6 Conduct of Tests 6.1 Fire Test. 6.2 Hose Stream Test. Chapter 7 Performance Criteria 7.1 Fire Test. 7.2 Hose Stream Test. Chapter 8 Report 8.1 Results.Annex A Explanatory Material Annex B Background and Development Annex C Radiant and Total Heat Flux Annex D Informational References

This standard prescribes standardized fire and hose stream test procedures that apply to the evaluation of fire window assemblies, including windows, glass block, and other light-transmitting assemblies intended to retard the spread of fire through openings in fire resistance–rated walls.

DocumentType
Standard
Pages
18
PublisherName
National Fire Protection Association
Status
Current
Supersedes

NFPA 556:2024 Guide on Methods for Evaluating Fire Hazard to Occupants of Passenger Road Vehicles

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