ASTM F1578 - 07

    Standard Test Method for Contact Closure Cycling of a Membrane Switch

    Active Standard ASTM F1578 | Developed by Subcommittee: F01.18

    Book of Standards Volume: 10.04


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    ASTM F1578

    Significance and Use

    This testing is performed to determine the electrical contact reliability under switching conditions and the physical changes caused by mechanical actuation of the switch assembly in the environments in which the assemblies operate. Evidence of deterioration, that is, cracking of substrate, domes both metal and polyester, ink delamination, etc., resulting from this test can at times be determined by visual examination. However, the effects may be more readily ascertained by measurements made prior to, during, and after exposure. Total circuit resistance, force-displacement, dielectric strength, insulation resistance, and capacitance are types of measurements that show the deleterious effects due to exposure.

    1. Scope

    1.1 This test method covers the setup, procedure, and apparatus required to depress and release a membrane switch to a predetermined number of cycles.

    1.2 This test method also covers the optional use of specified voltage and current during the cycling of the membrane switch.

    1.3 This test method can be used in conjunction with other ASTM standards such as Test Method F 1596.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D2240 Test Method for Rubber Property--Durometer Hardness

    F1596 Test Method for Exposure of Membrane Switches to Temperature and Relative Humidity

    F1661 Test Method for Determining the Contact Bounce Time of a Membrane Switch

    F1662 Test Method for Verifying the Specified Dielectric Withstand Voltage and Determining the Dielectric Breakdown Voltage of a Membrane Switch

    F1663 Test Method for Determining the Capacitance of a Membrane Switch

    F1680 Test Method for Determining Circuit Resistance of a Membrane Switch

    F1689 Test Method for Determining the Insulation Resistance of a Membrane Switch

    F2592 Test Method for Measuring the Force-Displacement of a Membrane Switch


    ICS Code

    ICS Number Code 31.220.20 (Switches)

    UNSPSC Code

    UNSPSC Code 39122200(Electrical switches and accessories)


    DOI: 10.1520/F1578-07

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