2018 NFPA 274 Standard - Current Edition
In purchasing digital access through a PDF or subscription service, you are purchasing a single-user license to access content only by the named account holder. Certain restrictions apply.

NFPA Members save an additional 10%.

Item #: NFPA_274
Price: $0.00
Digital Access with NFPA LiNK® Plans starting at $9.99/month
Formats Available:

  • Description

    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)

  • Table of Contents (2018 Current Edition)

    NFPA® 274 Standard Test Method to Evaluate Fire Performance Characteristics of Pipe Insulation, 2018 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
  • NFPA PDF Products

    If you purchased a PDF, licensed PDFs can be accessed immediately. Instructions can be found in your order confirmation.

    Effective with the annual 2020 code cycle, NFPA® will no longer offer access to the PDF format as a choice for new editions of codes and standards, handbooks, or other reference titles. Existing PDFs will remain in-market and will still be accessible in our National Fire Codes® Subscription Service (NFCSS™). For more information about the different format options available to access essential code and standard content you need, click here.

  • Historical Editions

    Previous editions of NFPA® documents are available for sale. Please see applicable NFPA codes and standards product pages to confirm which editions are available for purchase. If you have any questions, contact NFPA Customer Support at 1-800-344-3555 or nfpa.org/customerservice.