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Significance and Use
Contact bounce time is essential to manufacturers and users when designing interface circuitry because it specifies the time delay necessary in the decoder circuitry to avoid any false signals caused by contact bounce. Allowing for time delay makes the switch operation considerably more reliable.
1.1 This test method covers the determination of the contact bounce time of a membrane switch.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
D2240 Test Method for Rubber Property--Durometer Hardness
F1680 Test Method for Determining Circuit Resistance of a Membrane Switch
F2592 Test Method for Measuring the Force-Displacement of a Membrane Switch
ICS Number Code 29.120.40 (Switches)
UNSPSC Code 39122200(Electrical switches and accessories)
ASTM F1661-09, Standard Test Method for Determining the Contact Bounce Time of a Membrane Switch, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top