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  • BS EN 60068-3-4:2002

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Environmental testing Supporting documentation and guidance - Damp heat tests

    Available format(s):  Hardcopy, PDF

    Superseded date:  21-09-2023

    Language(s):  English

    Published date:  19-01-2006

    Publisher:  British Standards Institution

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

    INTRODUCTION
    1 Scope
    2 Definitions
    3 Procedures for the production and control of
       humidity
       3.1 General
       3.2 Injection of water (spraying)
       3.3 Injection of water vapour (steam)
       3.4 Saturation type
       3.5 Surface evaporation
       3.6 Aqueous solutions
       3.7 Dehumidification
       3.8 Control of humidity
    4 Physical appearance of the effects of humidity
       4.1 Condensation
       4.2 Adsorption
       4.3 Absorption
       4.4 Diffusion
    5 Acceleration
       5.1 General
       5.2 Acceleration factor
    6 Comparison of steady-state and cyclic tests
       6.1 Test C: Damp heat, steady-state
       6.2 Test Db: Damp heat, cyclic test
       6.3 Sequences of tests and composite tests
    7 Influence of test environment on specimens
       7.1 Change of physical characteristics
       7.2 Change of electrical characteristics
       7.3 Corrosion
    Annex A (informative) Humidity effects diagram
    Bibliography
    Figure A.1

    Abstract - (Show below) - (Hide below)

    Specifies the necessary information to assist in preparing relevant specifications, such as standards for components or equipment, in order to select appropriate tests and test severities for specific products and, in some cases, specific types of application.

    General Product Information - (Show below) - (Hide below)

    Committee GEL/104
    Development Note Also numbered as IEC 60068-3-4 Supersedes 98/261911 DC (04/2002) Supersedes BS 2011-2.2C&D(1990) (02/2004)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    BS 8422:2003 Force measurement. Strain gauge load cell systems. Calibration method
    BS 7288:2016 Specification for residual current devices with or without overcurrent protection for socket-outlets for household and similar uses
    03/309174 DC : DRAFT MAY 2003 BS 8422 - STRAIN GAUGE LOAD CELL SYSTEMS - CALIBRATION METHOD

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

    IEC 60068-1:2013 Environmental testing - Part 1: General and guidance
    IEC 60068-2-39:2015 Environmental testing - Part 2-39: Tests - Tests and guidance: Combined temperature or temperature and humidity with low air pressure tests
    IEC 60068-2-66:1994 Environmental testing - Part 2: Test methods - Test Cx: Damp heat, steady state (unsaturated pressurized vapour)
    IEC 60068-2-67:1995 Environmental testing - Part 2-67: Tests - Test Cy: Damp heat, steady state, accelerated test primarily intended for components
    IEC 60068-2-38:2009 Environmental testing - Part 2-38: Tests - Test Z/AD: Composite temperature/humidity cyclic test
    IEC 60068-2-17:1994 Basic environmental testing procedures - Part 2-17: Tests - Test Q: Sealing
    IEC 60068-2-10:2005 Environmental testing - Part 2-10: Tests - Test J and guidance: Mould growth
    IEC 60068-2-61:1991 Environmental testing - Part 2-61: Test methods - Test Z/ABDM:Climatic sequence
    IEC 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
    IEC 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
    IEC 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)
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