NFPA® 268 Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source 2012 Edition

Chapter 1 Administration

1.1 Scope
1.2 Purpose
1.3 Application
1.4 Units and Formulas
1.5 Precision or Bias

Chapter 2 Referenced Publications

2.1 General
2.2 NFPA Publications
2.3 Other Publications
2.4 Extracts for References in Mandatory Sections (Reserved)

Chapter 3 Definitions

3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
3.4 Testing Terminology.

Chapter 4 Summary of Method

4.1 Test Panel Orientation
4.2 Test Setup

Chapter 5 Radiant Panel Apparatus and Specimen Mounting System

5.1 Radiant Panel
5.2 Test Specimen
5.3 Radiation Shield
5.4 Spark Igniter
5.5 Ambient Conditions

Chapter 6 Instrumentation and Documentation

6.1 Heat Flux Meter
6.2 Thermocouples
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
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
11.4 Specimen Exposure
11.5 Heat Flux Variation

Chapter 12 Report

12.1 Information

Chapter 13 Calibration

13.1 Heat Flux Meters

Annex A Explanatory Material
Annex B Commentary on Radiant Ignition Test
Annex C Informational References
Index