ASTM F1683-09
(Practice)Standard Practice for Creasing or Bending a Membrane Switch, Membrane Switch Flex Tail Assembly or Membrane Switch Component (Withdrawn 2018)
Standard Practice for Creasing or Bending a Membrane Switch, Membrane Switch Flex Tail Assembly or Membrane Switch Component (Withdrawn 2018)
SIGNIFICANCE AND USE
Bending or creasing of membrane switches or their components can affect their visual appearance, mechanical integrity or electrical functionality. This practice simulates conditions that may be seen during manufacture, installation or use.
Bend or crease testing may be destructive, therefore any samples tested should be considered unfit for future use.
Specific areas of testing include, but are not limited to:
Membrane switch flex tails, and
Any component of a membrane switch that may be subjected to bending or creasing.
SCOPE
1.1 This practice establishes a method for the creasing or bending of any part of a membrane switch.
1.2 This practice can be used with other test methods to achieve specific test results.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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WITHDRAWN RATIONALE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 practice establishes a method for the creasing or bending of any part of a membrane switch.
Formerly under the jurisdiction of Committee F01 on Electronics, this practice was withdrawn in July 2018 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: F1683 − 09
Standard Practice for
Creasing or Bending a Membrane Switch, Membrane Switch
1
Flex Tail Assembly or Membrane Switch Component
This standard is issued under the fixed designation F1683; 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 3.1.3 crease—a ridge or groove made by folding and press-
ing.
1.1 This practice establishes a method for the creasing or
3.1.3.1 Discussion—In this case a fold mark in the substrate
bending of any part of a membrane switch.
will be caused by a weight rolled over a fold that will likely
1.2 This practice can be used with other test methods to
remain in the substrate after testing.
achieve specific test results.
3.1.4 crease cycle—a180°creasefollowedbyaflatteningof
1.3 The values stated in SI units are to be regarded as the
the crease (see Fig. 2).
standard. The values given in parentheses are for information
3.1.5 mandrel—a cylindrically shaped metal rod, such as
only.
brazing or drill rod.
1.4 This standard does not purport to address all of the
3.1.6 membrane switch—a momentary switching device in
safety concerns, if any, associated with its use. It is the
which at least one contact is on, or made of, a flexible
responsibility of the user of this standard to establish appro-
substrate.
priate safety and health practices and determine the applica-
3.1.7 membrane switch tail—a flexible portion of a mem-
bility of regulatory limitations prior to use.
brane switch used for input/output connection.
2. Referenced Documents
2 4. Significance and Use
2.1 ASTM Standards:
4.1 Bending or creasing of membrane switches or their
F2749 Test Method for Determining the Effects of Creasing
a Membrane Switch or Assembly components can affect their visual appearance, mechanical
integrity or electrical functionality. This practice simulates
F2750 Test Method for Determining the Effects of Bending
conditions that may be seen during manufacture, installation or
a Membrane Switch or Assembly
use.
3. Terminology
4.2 Bend or crease testing may be destructive, therefore any
3.1 Definitions:
samples tested should be considered unfit for future use.
3.1.1 bend—to force from a straight form into a different
4.3 Specific areas of testing include, but are not limited to:
and especially a curved one.
4.3.1 Membrane switch flex tails, and
3.1.1.1 Discussion—In this case no “hard” or angled crease
4.3.2 Any component of a membrane switch that may be
or fold is to occur. The substrate will only be formed into a
subjected to bending or creasing.
radius.
3.1.2 bend cycle—a fold of a sample around a specified
5. Interferences
mandrel which is “rolled” in one direction, followed by rolling
5.1 The following parameters may affect the results of this
in the opposite direction, returning the sample to its original
test:
position (see Fig. 1).
5.1.1 Temperature, and
5.1.2 Humidity.
1
5.1.3 Due to manual nature of this practice, repeatability
This practice is under the jurisdiction ofASTM Committee F01 on Electronics
and is the direct responsibility of Subcommittee F01.18 on Membrane Switches.
and reproducibility will be significantly impacted. For a more
Current edition approved June 15, 2009. Published July 2009. Originally
precise, repeatable procedure, see Test Methods F2749 and
ε1
approved in 1996. Last previous edition approved in 2005 as F1683 – 05 . DOI:
F2750.
10.1520/F1683-09.
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
6. Apparatus
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.1 Crease Practice:
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F1683 − 09
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6.1.1 Cylindrical Weight, 1 kg in size, measuring 50.8 mm
(2 in.) in diameter by 68.6 mm (2.7 in.) in height. Weight and
dimensions of weight to be within65%.
3
6.1.2 Cylindrical Weight, 2 kg in size, measuring 63.5 mm
(2.5 in.) in diameter by 86.4 mm (3.4 in.) in height.Weight and
dimensions of weight to be within 65%.
6.1.3 Other Dimensions or Weight to be specified by manu-
facturer or customer, or both.
6.1.4 Adhesive Tape or fixture to hold specimen securely in
place (see Fig. 3).
NOTE 1—The fixture illustrated in Fig. 3 is recommended to ensure
repeatability of crease location if multiple cycles are required.
6.2 Bend Practice:
6.2.1 Diameter Mandrel, to be specified by manufacturer or
customer.
6.2.2 Adhesive Tape or fixture to hold specimen sec
...
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