UL 109
Standard for Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use

DETAILS
Edition Number:6SCC Approved:--
Edition Date:1997-06-19DOD Approved: 1991-08-14
Price Code:AANSI Approved: 2018-01-11
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover fittings to be used in tubing carrying:

    a)    Fuel gases such as acetylene, liquefied petroleum gas (LP-gas), manufactured and natural fuel gases, and other liquefied and non-liquefied flammable gases that are stable because of their composition or because of the conditions of storage,

    b)    Refrigerants,

    c)    Gasoline or gasohol formulated in accordance with Standard Specification for Automotive Spark-Ignition Engine Fuel, ANSI/ASTM D 4814,

    d)    Diesel fuel formulated in accordance with Standard Specification for Diesel Fuel Oils, ANSI/ASTM D 975,

    e)    Heating fuel oils formulated in accordance with Standard Specification for Fuel Oils, ANSI/ASTM D 396, and

    f)    Kerosene formulated in accordance with Specification for Kerosine, ANSI/ASTM D 3699.


    1.1 revised May 29, 2009

    1.2 The requirements for "Marine Use" cover fittings to be used with tubing carrying gasoline or gasohol formulated in accordance with Standard Specification for Automotive Spark-Ignition Engine Fuel, ANSI/ASTM D 4814, or diesel fuel formulated in accordance with Standard Specification for Diesel Fuel Oils, ANSI/ASTM D 975.


    1.2 revised May 29, 2009

    1.3 This standard does not cover tube fittings for liquid or gaseous Biofuels or Ethanol fuels other than gasohol noted in 1.1 (c) and 1.2.


    1.3 revised May 29, 2009

    1.4 Requirements for the selection, installation, and use of the fittings covered by this Standard are included in the Standards of the National Fire Protection Association pertaining to storage and use of flammable and combustible fluids, such as:

    NFPA 30,  Flammable and Combustible Liquids Code

    NFPA 31,  Installation of Oil-Burning Equipment

    NFPA 32,  Dry Cleaning Plants

    NFPA 51,  Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes

    NFPA 54,  National Fuel Gas Code

    NFPA 58,  Storage and Handling of Liquefied Petroleum Gases

    1.5 Requirements for the selection, installation, and use of fittings for "Marine Use" as covered by this Standard are included in the Standard for Pleasure and Commercial Motor Craft, NFPA 302, and the appropriate publications of the American Boat and Yacht Council.

    1.6 Deleted January 11, 2005

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
          • 3 Instructions
        • DESIGN AND CONSTRUCTION
          • 4 General
          • 5 Materials
        • PERFORMANCE
          • 6 General
          • 7 Pull Test
          • 8 Vibration Test
          • 9 Vibration, Tension, and Torque Test, Marine-Use Fittings
          • 10 Mercurous-Nitrate Immersion Test
          • 11 10-Day Moist Ammonia Air Stress Cracking Test
          • 12 Marine-Use Make and Break Test
        • MANUFACTURING AND PRODUCTION TESTS
          • 13 General
        • MARKING
          • 14 Content