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Standard Test Method for Contact Closure Cycling of a Membrane Switch (Withdrawn 2023)
Automatically translated name:
Standard Test Method for Contact Closure Cycling of a Membrane Switch
STANDARD published on 1.6.2014
Designation standards: ASTM F1578-07(2014)
Note: WITHDRAWN
Publication date standards: 1.6.2014
SKU: NS-50805
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
contact closure cycling, membrane switch, ICS Number Code 31.220.20 (Switches)
Significance and Use | ||||||||||||||||
4.1 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. |
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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 F1596. 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. |
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2. Referenced Documents | ||||||||||||||||
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15.6.2009
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15.6.2009
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15.6.2009
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1.1.2014
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1.5.2013
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