NFPA 285 PDF

Highlights

The 2025 edition of NFPA 285, Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components, features:
A new Chapter 12 with guidance on an engineering analysis/judgment that may demonstrate how exterior wall assemblies that differ from a successfully tested wall assembly comply with NFPA 285
A revised Annex B to reflect new guidance in Chapter 12

Table of Contents

NFPA® 285 Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components 2025 Edition
Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Application.
Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications.
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 Facility and Apparatus
4.1 Noncombustible Material.
4.2 Limited-Combustible Material.
4.3 Test Facility.
4.4 Test Apparatus.
4.5 Movable Test Frame.
4.6 Burners.
Chapter 5 Test Specimens
5.1 Location of Test Specimens.
5.2 Specimen Mounting.
5.3 Size of Test Specimen.
5.4 Position of Test Specimen.
5.5 Window Opening.
5.6 Securing Test Specimen to Test Apparatus.
5.7 Construction Details of Test Specimen.
5.8 Curing Period.
Chapter 6 Instrumentation
6.1 Temperature Measurements.
6.2 Gas Flow Meters.
6.3 Thermocouples.
Chapter 7 Calibration Procedure
7.1 Calibration Test Procedure.
7.2 Frequency of Calibration.
Chapter 8 Fire Test Procedure
8.1 Fire Test Procedure.
Chapter 9 Data Collection and Observation
9.1 Duration.
9.2 Data Recording.
9.3 Ambient Conditions.
9.4 Visual Observations.
9.5 Determination of Extent and Depth of Damage.
Chapter 10 Conditions of Acceptance
10.1 Test Specimen.
10.2 Performance Criteria.
Chapter 11 Report
11.1 Fire Test Report.
Chapter 12 Extension of Data Resulting from Assemblies Meeting NFPA 285 Test Requirements
12.1 General Requirements.
12.2 Evaluating Wall Assemblies.
12.3 Limitations.
Annex A Explanatory Material
Annex B Guide for Extensions of Results from Assemblies that Meet NFPA 285 Test Requirements
Annex C Informational References