ASTM F1596-15
(Test Method)Standard Test Method for Exposure of a Membrane Switch or Printed Electronic Device to Temperature and Relative Humidity (Withdrawn 2024)
Standard Test Method for Exposure of a Membrane Switch or Printed Electronic Device to Temperature and Relative Humidity (Withdrawn 2024)
SIGNIFICANCE AND USE
4.1 Changes in temperature and humidity during shipping, storage or use can affect the visual appearance, mechanical integrity, or electrical functionality of switches. This practice simulates three different environments to which membrane switches may be exposed.
4.2 The three industry-recognized switch categories based on performance levels are Level 1, Level 2, and Level 3 (see section 9.1).
4.3 Additionally, there may be custom requirements that vary by application, therefore, these requirements can be determined by customer and vendor agreement and be established as a Level 4.
4.4 This practice defines the duration of a single cycle. Multiple cycles may be appropriate depending on the requirements of the application.
SCOPE
1.1 This test method covers a procedure for temperature and humidity cycling of a membrane switch or printed electronic device.
1.2 This test method is performed to evaluate the properties of materials used in the construction of membrane switch or printed electronic assemblies as they are influenced by the absorption and diffusion of moisture and moisture vapor. This is an accelerated environmental test, accomplished by the continuous exposure of the test specimen to high relative humidity at an elevated temperature. Absorption of moisture by many materials results in swelling, which destroys their functional utility, causes loss of physical strength, and changes in other mechanical properties. Insulating materials which absorb moisture may suffer degradation of their electrical properties.
1.2.1 Physical changes:
1.2.1.1 Differential contraction or expansion rates or induced strain of dissimilar materials.
1.2.1.2 Cracking of surface coatings.
1.2.1.3 Leaking of sealed compartments.
1.2.1.4 Deformation or fracture of components.
1.2.2 Chemical changes:
1.2.2.1 Separation of constituents.
1.2.2.2 Failure of chemical agent protection.
1.2.3 Electrical changes:
1.2.3.1 Changes in electronic and electrical components.
1.2.3.2 Electronic or mechanical failures due to rapid water of condensate formation.
1.2.3.3 Excessive static electricity.
1.3 This test method is not intended to be a thermal shock procedure; a ramp rate between temperature extremes should not exceed 2°C/min.
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.
WITHDRAWN RATIONALE
This test method covers a procedure for temperature and humidity cycling of a membrane switch or printed electronic device.
Formerly under the jurisdiction of Committee F01 on Electronics, this test method was withdrawn in January 2024 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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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: F1596 − 15
Standard Test Method for
Exposure of a Membrane Switch or Printed Electronic
1
Device to Temperature and Relative Humidity
This standard is issued under the fixed designation F1596; 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 priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.1 This test method covers a procedure for temperature and
humidity cycling of a membrane switch or printed electronic
2. Referenced Documents
device.
2
2.1 ASTM Standards:
1.2 This test method is performed to evaluate the properties
F1595 Practice forViewing Conditions forVisual Inspection
of materials used in the construction of membrane switch or
of Membrane Switches
printed electronic assemblies as they are influenced by the
F1661 Test Method for Determining the Contact Bounce
absorption and diffusion of moisture and moisture vapor. This
Time of a Membrane Switch
is an accelerated environmental test, accomplished by the
F1662 Test Method for Verifying the Specified Dielectric
continuous exposure of the test specimen to high relative
Withstand Voltage and Determining the Dielectric Break-
humidityatanelevatedtemperature.Absorptionofmoistureby
down Voltage of a Membrane Switch
many materials results in swelling, which destroys their func-
F1663 Test Method for Determining the Capacitance of a
tional utility, causes loss of physical strength, and changes in
Membrane Switch or Printed Electronic Device
other mechanical properties. Insulating materials which absorb
F1680 Test Method for Determining Circuit Resistance of a
moisture may suffer degradation of their electrical properties.
Membrane Switch
1.2.1 Physical changes:
F1689 Test Method for Determining the Insulation Resis-
1.2.1.1 Differential contraction or expansion rates or in-
tance of a Membrane Switch
duced strain of dissimilar materials.
F2592 Test Method for Measuring the Force-Displacement
1.2.1.2 Cracking of surface coatings.
of a Membrane Switch
1.2.1.3 Leaking of sealed compartments.
1.2.1.4 Deformation or fracture of components.
3. Terminology
1.2.2 Chemical changes:
1.2.2.1 Separation of constituents. 3.1 Definitions:
1.2.2.2 Failure of chemical agent protection. 3.1.1 membrane switch—a momentary switching device in
1.2.3 Electrical changes: which at least one contact is on, or made of, a flexible
1.2.3.1 Changes in electronic and electrical components. substrate.
1.2.3.2 Electronic or mechanical failures due to rapid water
4. Significance and Use
of condensate formation.
1.2.3.3 Excessive static electricity.
4.1 Changes in temperature and humidity during shipping,
storage or use can affect the visual appearance, mechanical
1.3 This test method is not intended to be a thermal shock
procedure; a ramp rate between temperature extremes should integrity, or electrical functionality of switches. This practice
simulates three different environments to which membrane
not exceed 2°C/min.
switches may be exposed.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.2 The three industry-recognized switch categories based
responsibility of the user of this standard to establish appro-
on performance levels are Level 1, Level 2, and Level 3 (see
section 9.1).
1
This test method is under the jurisdiction of ASTM Committee F01 on
Electronics and is the direct responsibility of Subcommittee F01.18 on Printed
2
Electronics. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
CurrenteditionapprovedJune1,2015.PublishedJuly2015.Originallyapproved contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
in1995.Lastpreviouseditionapprovedin2007asF1596–07.DOI:10.1520/F1596- Standards volume information, refer to the standard’s Document Summary page on
15. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F1596 − 15
4.3 Additionally, there may be custom requirements that 8. Pre-Test Setup
vary by application, therefore, these requirements can be
8.1 Takepre-testmeasurementsperthesetestmethods,oras
determined by customer and vendor agreement and be estab-
specified, and record results.
lished as a Level 4.
8.1.1 Force Displacement per Test Method F2592.
8.1.2 Circuit Resistance per Test Method F1
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1596 − 07 F1596 − 15
Standard Test Method for
Exposure of Membrane Switches a Membrane Switch or
Printed Electronic Device to Temperature and Relative
1
Humidity
This standard is issued under the fixed designation F1596; 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
1.1 This test method covers a procedure for temperature and humidity cycling of membrane switches.a membrane switch or
printed electronic device.
1.2 This test method is performed to evaluate the properties of materials used in the construction of membrane switch or printed
electronic assemblies as they are influenced by the absorption and diffusion of moisture and moisture vapor. This is an accelerated
environmental test, accomplished by the continuous exposure of the test specimen to high relative humidity at an elevated
temperature. Absorption of moisture by many materials results in swelling, which destroys their functional utility, causes loss of
physical strength, and changes in other mechanical properties. Insulating materials which absorb moisture may suffer degradation
of their electrical properties.
1.2.1 Physical changes:
1.2.1.1 Differential contraction or expansion rates or induced strain of dissimilar materials.
1.2.1.2 Cracking of surface coatings.
1.2.1.3 Leaking of sealed compartments.
1.2.1.4 Deformation or fracture of components.
1.2.2 Chemical changes:
1.2.2.1 Separation of constituents.
1.2.2.2 Failure of chemical agent protection.
1.2.3 Electrical changes:
1.2.3.1 Changes in electronic and electrical components.
1.2.3.2 Electronic or mechanical failures due to rapid water of condensate formation.
1.2.3.3 Excessive static electricity.
1.3 This test method is not intended to be a thermal shock procedure; a ramp rate between temperature extremes should not
exceed 2°C/min.
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
2
2.1 ASTM Standards:
F1595 Practice for Viewing Conditions for Visual Inspection of Membrane Switches
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 or Printed Electronic Device
1
This test method is under the jurisdiction of ASTM Committee F01 on Electronics and is the direct responsibility of Subcommittee F01.18 on Membrane SwitchesPrinted
Electronics.
Current edition approved Dec. 1, 2007June 1, 2015. Published December 2007July 2015. Originally approved in 1995. Last previous edition approved in 20052007 as
F1596–00 (2005). –07. DOI: 10.1520/F1596-07.10.1520/F1596-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F1596 − 15
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
3. Terminology
3.1 Definitions:
3.1.1 membrane switch—a momentary switching device in which at least one contact is on, or made of, a flexible substrate.
4. Significance and Use
4.1 Changes in temperature and humidity during shipping, storage or use can affect the visual appearance, mechanical integrity,
or electrical functionality of switches. This practice simulates three different environments to which membrane switches may be
exposed.
4.2 The three industry-recognized switch categories based on performance levels are Level 1, Level 2, and Level 3 (see section
8.19.1).
4.3 Additionally, there may be custom requirements that vary by application, therefore, these requirements can be determ
...
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