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NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation

2023 NFPA 274 Standard - Current Edition
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  • Description

    Help make occupancies safer by using the latest test method for determining fire performance characteristics of pipe insulation assemblies.

    NFPA® 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation, is a vital resource to help testing laboratories and manufacturers ensure the selection of assemblies that contribute less heat, flame, and smoke in fire scenarios. The 2023 edition provides the most current test method of determining the heat release and smoke generation of pipe insulation and pipe insulation assemblies under controlled laboratory conditions.

    Notable changes include:

    • Updates to the latest referenced codes and standards
    • Revisions to the annex to support the 2023 edition of NFPA 274

     

  • Table of Contents (2023 Current Edition)

    NFPA® 274 Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation, 2023 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Application.
    1.4 Units and Formulas.
    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. (Reserved)
    Chapter 4 Test Specimens
    4.1 Size and Preparation.
    4.2 Conditioning.
    Chapter 5 Test Equipment and Instrumentation
    5.1 Pipe Chase.
    5.2 Ignition Source.
    5.3 Canopy Hood and Exhaust Duct.
    5.4 Instrumentation in Exhaust Duct.
    5.5 Sampling Line.
    5.6 Gas Sampling and Analysis Equipment.
    5.7 Smoke Density Measuring Instruments.
    5.8 Data Acquisition.
    5.9 Photographic Equipment.
    Chapter 6 Calibration
    6.1 Calibration of Equipment.
    6.2 Daily Calibration.
    Chapter 7 Test Procedure
    7.1 Testing Procedure.
    Chapter 8 Calculations
    8.1 Method of Calculation.
    8.2 Symbols.
    8.3 Calibration Constant Using Propane.
    8.4 Heat Release for Test Specimens.
    8.5 Smoke Obscuration.
    Chapter 9 Report of Results
    9.1 Documentation.
    Annex A Explanatory Material
    Annex B Commentary
    Annex C Heat Release Calculations Using Additional Gas Analysis
    Annex D Informational References
  • Prior Edition (2018)

    Use the latest test method for pipe insulation assemblies that contribute less heat, flame, and smoke in fire scenarios. NFPA 274 is up-to-date with NFPA codes and standards for state-of-the-art information.

    Essential for testing laboratories and manufacturers, NFPA 274, Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation is used to determine the heat release and smoke generation of pipe insulation and pipe insulation assemblies under controlled laboratory conditions. A method is provided for an examination of the complete insulation assembly including elbows in an actual end use configuration.

    The 2018 edition of the Standard provides full coverage on:

    • Test specimens
    • Test equipment and instrumentation
    • Calibration
    • Procedure
    • Calculations
    • Report of results

    Updated code and standard references improve consistency and usability for users. (Print, 20 pp., 2018)

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