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  • UL 1978:4ED 2010-12

    Current The latest, up-to-date edition.

    Grease Ducts

    Available format(s):  Hardcopy

    Language(s): 

    Published date:  13-12-2010

    Publisher:  Underwriters Laboratories

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 General
    3 Glossary
    4 Installation instructions
    Construction
    5 Materials
    6 Assembly
    7 Joints
    8 Support assembly
    Performance
    9 General
    10 Test installations
    11 Temperature measurement
    12 Temperature test - 500 deg F (260 deg C) flue gases
    13 Abnormal temperature test
    14 Leakage test
    15 Vertical support test
    16 Strength tests
    17 Fire and leakage test of grease duct access doors and
       fittings
    18 Pressure tests for fittings exposed to fire
       extinguishing system pressure
    19 Tensile strength, elongation, and change in volume
       tests of gaskets and seals
    Marking
    20 General
    Appendix A - Standards for components

    Abstract - (Show below) - (Hide below)

    Describes factory-built grease ducts, and grease duct assemblies that are intended to be installed at reduced clearances where 18 inch (457 mm) clearance is specified in the Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations, NFPA 96, and the International Mechanical Code.

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    Development Note NEW CHILD REV 3 2021 IS NOW ADDED.
    Document Type Standard
    Product Note NEW CHILD REV 3 2021 IS NOW ADDED.
    Publisher Underwriters Laboratories
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    NFPA 96:2024 Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations
    ASHRAE 154 : 2016 VENTILATION FOR COMMERCIAL COOKING OPERATIONS
    UL 2221:2ED 2010-08 Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies
    NFPA 96 : 2017 VENTILATION CONTROL AND FIRE PROTECTION OF COMMERCIAL COOKING OPERATIONS
    ICC IMC Code and Commentary : 2015 IMC® Code and Commentary
    ICC 2012 INTERNATIONAL MECH. CODE : 2012 INTERNATIONAL MECHANICAL CODE

    Standards Referencing This Book - (Show below) - (Hide below)

    UL 2221:2ED 2010-08 Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies
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