UL 437
Standard for Key Locks

DETAILS
Edition Number:8ANSI Approved: 2013-05-15
Edition Date:2013-05-15DOD Approved:--
Price Code:ASCC Approved:--
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover key locks categorized as follows and defined in Glossary, Section 3:

    a)    Cabinet locking cylinders,

    b)    Door locks,

    c)    Locking cylinders,

    d)    Security container key locks, Type 1 and Type 2, and

    e)    Two-key locks.

    1.2 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 Undated references
            • 2.4 Terminology
          • 3 Glossary
          • 4 Installation and Operating Instructions
        • CONSTRUCTION
          • 5 General
          • 6 Nonmetallic Parts
          • 7 Corrosion Protection
          • 8 Key Changes
          • 9 Security Container Key Locks – Type 1 and Type 2
        • PERFORMANCE
          • 10 Endurance Test
          • 11 Attack Resistance Tests
            • 11.1 General
            • 11.2 Tools
            • 11.3 Test samples
            • 11.4 Test installation
            • 11.5 Test applicability and time
            • 11.6 Picking test
            • 11.7 Lock bumping test11.7 effective November 16, 2015
            • 11.8 Impression test
            • 11.9 Forcing test
            • 11.10 Drilling test
            • 11.11 Sawing test
            • 11.12 Prying test
            • 11.13 Pulling test
            • 11.14 Driving test
          • 12 Salt Spray Corrosion Test
          • 13 Polymeric Materials Tests
            • 13.1 Strength
            • 13.2 Aging-stress distortion
            • 13.3 Moisture absorption
        • MARKINGS
          • 14 General
    • Superseded List