ASTM F2188-02(2019)
(Test Method)Standard Test Method for Determining the Effect of Variable Frequency Vibration on a Membrane Switch or Membrane Switch Assembly (Withdrawn 2023)
Standard Test Method for Determining the Effect of Variable Frequency Vibration on a Membrane Switch or Membrane Switch Assembly (Withdrawn 2023)
SIGNIFICANCE AND USE
3.1 Vibration encountered in the field is not usually simple harmonic.
3.2 This test can be used to determine relative motion between parts, critical frequencies, adhesion strengths, loosening of parts or other physical effects that can cause fatigue or failure.
3.3 Experience has shown that this test will expose potential failures associated with the electronic components of a membrane switch, where tests of lower levels will not.
3.4 This practice can be used to qualify a membrane switch for aerospace, medical and other applications.
3.5 This test is potentially destructive, intended for device qualification.
3.6 Either Test Condition A or B can be chosen, based upon the intent of the test determined by the qualified engineer.
SCOPE
1.1 This test method establishes procedures for determining the effect of sinusoidal vibration, within the specified frequency range, on switch contacts, mounting hardware, adhered component parts, solder or heat stakes, tactile devices, and cable or ribbon interconnects associated with a membrane switch or membrane switch assembly.
1.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
WITHDRAWN RATIONALE
This test method establishes procedures for determining the effect of sinusoidal vibration, within the specified frequency range, on switch contacts, mounting hardware, adhered component parts, solder or heat stakes, tactile devices, and cable or ribbon interconnects associated with a membrane switch or membrane switch assembly.
Formerly under the jurisdiction of Committee F01 on Electronics, this test method was withdrawn in November 2023. This standard is being withdrawn without replacement because Committee F01 was disbanded.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F2188 − 02 (Reapproved 2019)
Standard Test Method for
Determining the Effect of Variable Frequency Vibration on a
Membrane Switch or Membrane Switch Assembly
This standard is issued under the fixed designation F2188; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Significance and Use
1.1 This test method establishes procedures for determining 3.1 Vibration encountered in the field is not usually simple
the effect of sinusoidal vibration, within the specified fre- harmonic.
quency range, on switch contacts, mounting hardware, adhered
3.2 This test can be used to determine relative motion
component parts, solder or heat stakes, tactile devices, and
between parts, critical frequencies, adhesion strengths, loosen-
cable or ribbon interconnects associated with a membrane
ing of parts or other physical effects that can cause fatigue or
switch or membrane switch assembly.
failure.
1.2 This standard does not purport to address all of the
3.3 Experience has shown that this test will expose potential
safety concerns, if any, associated with its use. It is the
failures associated with the electronic components of a mem-
responsibility of the user of this standard to establish appro-
brane switch, where tests of lower levels will not.
priate safety, health, and environmental practices and deter-
3.4 This practice can be used to qualify a membrane switch
mine the applicability of regulatory limitations prior to use.
for aerospace, medical and other applications.
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.5 This test is potentially destructive, intended for device
ization established in the Decision on Principles for the
qualification.
Development of International Standards, Guides and Recom-
3.6 Either Test ConditionAor B can be chosen, based upon
mendations issued by the World Trade Organization Technical
the intent of the test determined by the qualified engineer.
Barriers to Trade (TBT) Committee.
4. Apparatus
2. Terminology
4.1 Vibration Fixture, capable of holding the unit under test
2.1 Definitions:
and subjecting it to the specified random frequency and
2.1.1 contact closure—the event at which a specified resis-
duration as described in the In-Process Test.
tance is achieved on a membrane switch.
4.2 Contact Closure Detection Device, (if test is performed
2.1.2 critical resonance frequency—any point on the speci-
under load conditions), instrumentation capable of resolving a
men that is observed to have maximum amplitude or more than
switch opening time of greater than or equal to 1.0 ms.
twice that of the base input amplitude or support points.
4.3 Resonant Detecting Instrumentation, (if determination
2.1.3 membrane switch—a momentary switching device in
of critical resonance frequency is desired), capable of deter-
which at least one contact is on, or made of, a flexible
mining the critical resonance frequency.
substrate.
5. Procedure—Test Condition A, 10 g
2.1.4 specified resistance—maximum allowable circuit re-
sistance as measured between two test points whose internal 5.1 Pre-Test Setup:
5.1.1 Secure membrane switch on vibration test surface
contacts, when held closed, complete a circuit.
with appropriate fixturing.
2.1.5 test points—two pre-selected conductive points in a
5.1.2 Connect switch detection leads to test points on the
circuit loop, possibly including a switch.
membrane switch (if contact closure is being monitored during
the test).
5.1.3 Function testing to be specified and performed again
This test method is under the jurisdiction of ASTM Committee F01 on
after test completion for comparison.
Electronics and is the direct responsibility of Subcommittee F01.18 on Printed
Electronics.
5.2 In-Process Test:
Current edition approved Dec. 1, 2019. Published December 2019. Originally
5.2.1 Subject test unit to sinusoidal vibration varied in
approved in 2002. Last previous edition approved in 2002 as D2188 – 02 (2011).
DOI: 1
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2188 − 02 (Reapproved 2019)
Standard Test Method for
Determining the Effect of Variable Frequency Vibration on a
Membrane Switch or Membrane Switch Assembly
This standard is issued under the fixed designation F2188; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Significance and Use
1.1 This test method establishes procedures for determining 3.1 Vibration encountered in the field is not usually simple
the effect of sinusoidal vibration, within the specified fre- harmonic.
quency range, on switch contacts, mounting hardware, adhered
3.2 This test can be used to determine relative motion
component parts, solder or heat stakes, tactile devices, and
between parts, critical frequencies, adhesion strengths, loosen-
cable or ribbon interconnects associated with a membrane
ing of parts or other physical effects that can cause fatigue or
switch or membrane switch assembly.
failure.
1.2 This standard does not purport to address all of the
3.3 Experience has shown that this test will expose potential
safety concerns, if any, associated with its use. It is the
failures associated with the electronic components of a mem-
responsibility of the user of this standard to establish appro-
brane switch, where tests of lower levels will not.
priate safety, health, and environmental practices and deter-
3.4 This practice can be used to qualify a membrane switch
mine the applicability of regulatory limitations prior to use.
for aerospace, medical and other applications.
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.5 This test is potentially destructive, intended for device
ization established in the Decision on Principles for the
qualification.
Development of International Standards, Guides and Recom-
3.6 Either Test Condition A or B can be chosen, based upon
mendations issued by the World Trade Organization Technical
the intent of the test determined by the qualified engineer.
Barriers to Trade (TBT) Committee.
4. Apparatus
2. Terminology
4.1 Vibration Fixture, capable of holding the unit under test
2.1 Definitions:
and subjecting it to the specified random frequency and
2.1.1 contact closure—the event at which a specified resis-
duration as described in the In-Process Test.
tance is achieved on a membrane switch.
4.2 Contact Closure Detection Device, (if test is performed
2.1.2 critical resonance frequency—any point on the speci-
under load conditions), instrumentation capable of resolving a
men that is observed to have maximum amplitude or more than
switch opening time of greater than or equal to 1.0 ms.
twice that of the base input amplitude or support points.
4.3 Resonant Detecting Instrumentation, (if determination
2.1.3 membrane switch—a momentary switching device in
of critical resonance frequency is desired), capable of deter-
which at least one contact is on, or made of, a flexible
mining the critical resonance frequency.
substrate.
5. Procedure—Test Condition A, 10 g
2.1.4 specified resistance—maximum allowable circuit re-
5.1 Pre-Test Setup:
sistance as measured between two test points whose internal
5.1.1 Secure membrane switch on vibration test surface
contacts, when held closed, complete a circuit.
with appropriate fixturing.
2.1.5 test points—two pre-selected conductive points in a
5.1.2 Connect switch detection leads to test points on the
circuit loop, possibly including a switch.
membrane switch (if contact closure is being monitored during
the test).
5.1.3 Function testing to be specified and performed again
This test method is under the jurisdiction of ASTM Committee F01 on
after test completion for comparison.
Electronics and is the direct responsibility of Subcommittee F01.18 on Printed
Electronics.
5.2 In-Process Test:
Current edition approved Dec. 1, 2019. Published December 2019. Originally
5.2.1 Subject test unit to sinusoidal vibration varied in
approved in 2002. Last previous edition approved in 2002 as D2188 – 02 (2011).
DOI: 10.1520/F2188-02R19. frequency from 10 to 500 Hz at a logarithmic rate of 0.5 octave
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