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NFPA 268 2022

NFPA 268 2022

$80.71

NFPA 268: Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source

Published By Publication Date Number of Pages
NFPA 2022 22
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Help improve building fire safety by referencing NFPA 268, Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2022 edition. It’s vital that manufacturers and testing laboratories have accurate procedures for testing the ignitability characteristics of building construction materials and components. NFPA 268, 2022 edition, outlines the methods for deciding the susceptibility of exterior wall assemblies to fire in the presence of a pilot ignition source. The document answers the need for standardized test procedures that complement fire test methods available within existing NFPA standards. Ignitability characteristics are tested when exposed to a radiant heat flux of 12.5 kW/m2 (1.10 Btu/ft2-sec) for 20 minutes. This resource can be used to measure and describe the properties of materials in controlled laboratory conditions and also as an element of a fire risk assessment. NFPA 268 is used in various processes, including: Code and regulatory Research and development Specification and design The revised 2022 edition is the reliable source for the most up-to-date information and methods of testing the ignitability of exterior wall assemblies and their propensity for contributing to fire expansion. From procedures and specimens to calibration of equipment and safety precautions, NFPA 268 is your comprehensive resource to this method of product fire testing. The standard applies to exterior wall assemblies with flat, or almost flat, outward-facing surfaces. The 2022 edition is updated to address testing at different incident heat fluxes for larger fire separation distances. Help ensure you have access to the latest NFPA 268 knowledge and requirements.

PDF Catalog

PDF Pages PDF Title
8 Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Application.
1.4 Units and Formulas.
1.5 Precision or Bias.
9 Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications. (Reserved)
2.3 Other Publications.
2.4 References for Extracts in Mandatory Sections. (Reserved)
Chapter 3 Definitions
3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions.
Chapter 4 Summary of Method
4.1 Test Panel Orientation.
4.2 Test Setup.
10 Chapter 5 Radiant Panel Apparatus and Specimen Mounting System
5.1 Radiant Panel.
5.2 Test Specimen.
11 5.3 Radiation Shield.
5.4 Spark Igniter.
5.5 Ambient Conditions.
13 Chapter 6 Instrumentation and Documentation
6.1 Heat Flux Meter.
6.2 Thermocouples.
14 6.3 Photographic Documentation.
Chapter 7 Test Specimen and Mounting
7.1 Specimen Detail.
7.2 Mounting.
Chapter 8 Calibration of the Test Equipment
8.1 Calibration.
15 8.2 Spacing.
8.3 Validation.
Chapter 9 Test Specimen Conditioning
9.1 Conditioning.
Chapter 10 Safety Precautions
10.1 Gas Hazard.
10.2 High Temperature and Pressure.
10.3 Products of Combustion.
Chapter 11 Test Procedure
11.1 Conditioning.
11.2 Specimen and Test Equipment.
11.3 Radiant Panel Preheat.
16 11.4 Specimen Exposure.
11.5 Heat Flux Variation. During a Test.
11.6 Testing at Different Incident Heat Fluxes for Larger Fire Separation Distances.
Chapter 12 Report
12.1 Information.
Chapter 13 Calibration
13.1 Heat Flux Meters.
17 Annex A Explanatory Material
18 Annex B Commentary on Radiant Ignition Test
20 Annex C Informational References

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NFPA 268 2022
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