NFPA® 257 Standard on Fire Test for Window and Glass Block Assemblies 2012 Edition

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
Index