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ASTM F2114-02

(Guide)

Standard Guide for ASTM Standard Test Methods, Standard Practices, and Typical Values of a Membrane Switch (Withdrawn 2009)

Standard Guide for ASTM Standard Test Methods, Standard Practices, and Typical Values of a Membrane Switch (Withdrawn 2009)

SIGNIFICANCE AND USE
In establishing guidelines for specifying a membrane switch, it is important to allow application design engineers to base their decisions on requirements using known reasonable, achievable performance levels.
Over-specification increases cost and complexity; under-specification risks not meeting performance criteria.
SCOPE
1.1 This guide contains a list of the current test methods and practices generated by Subcommittee F01.18 on Membrane Switches along with typical values for specifying certain performance characteristics of a membrane switch.
1.2 As a minimum, for any particular membrane switch, the values for the required characteristics should be specified.
1.3 Additional performance characteristics may be required and should be specified accordingly.
WITHDRAWN RATIONALE
This guide contains a list of the current test methods and practices generated by Subcommittee F01.18 on Membrane Switches along with typical values for specifying certain performance characteristics of a membrane switch.
Formerly under the jurisdiction of Committee F01 on Electronics and Subcommittee F01.18 on Membrane Switches, this guide was withdrawn in June 2009 because typical values have been and are being added to the individual test methods and value ranges are much more diverse than when published so typical values have become less relevant to today's industry.

General Information

Status
Withdrawn
Publication Date
09-Dec-2002
Withdrawal Date
14-Jun-2009
ICS
31.220.20 - Switches
35.180 - IT Terminal and other peripheral equipment
Technical Committee
F01 - Electronics
Drafting Committee
F01.18 - Printed Electronics
Current Stage
Ref Project

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ASTM F2114-02 - Standard Guide for ASTM Standard Test Methods, Standard Practices, and Typical Values of a Membrane Switch (Withdrawn 2009)ASTM F2114-02 - Standard Guide for ASTM Standard Test Methods, Standard Practices, and Typical Values of a Membrane Switch (Withdrawn 2009)
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ASTM F2114-02 - Standard Guide for ASTM Standard Test Methods, Standard Practices, and Typical Values of a Membrane Switch (Withdrawn 2009)
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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:F2114–02
Standard Guide for
ASTM Standard Test Methods, Standard Practices, and
1
Typical Values of a Membrane Switch
This standard is issued under the fixed designation F 2114; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope F 1683 Practice for Creasing and Bending a Membrane
Switch, Membrane SwitchAssembly or Membrane Switch
1.1 This guide contains a list of the current test methods and
2
Component
practices generated by Subcommittee F01.18 on Membrane
F 1689 Test Method for Determining the Insulation Resis-
Switches along with typical values for specifying certain
2
tance of a Membrane Switch
performance characteristics of a membrane switch.
F 1762 Practice for Determining the Effects of Variation in
1.2 As a minimum, for any particular membrane switch, the
2
Atmospheric Pressure on a Membrane Switch
values for the required characteristics should be specified.
F 1812 Test Method for Determining the Effectiveness of
1.3 Additional performance characteristics may be required
2
Membrane Switch ESD Shielding
and should be specified accordingly.
F 1843 Practice for Determining the Specular Gloss of
2
2. Referenced Documents
Flexible Substrates, both Printed and Unprinted
2
F 1895 Practice for Submersion of a Membrane Switch
2.1 ASTM Standards:
F 1995 Test Method for Determining the Bond Strength of
F 1570 Test Method for Determining the Tactile Ratio of a
2
a Surface Mount Device (SMD) on a Membrane Switch by
Membrane Switch
2
Applying a Shear Force
F 1578 Practice for Contact Closure Cycling of a Mem-
2
F 1996 Test Method for Silver Migration for Membrane
brane Switch
2
Switch Circuitry
F 1595 Practice for Visual Inspection of a Membrane
2
F 1997 Test Method for Determining the Sensitivity (Teas-
Switch
2
ing) of a Tactile Membrane Switch
F 1596 Practice for Exposure of Membrane Switches to
2
2
F 2072 Practice for Hosedown of a Membrane Switch
Temperature and Relative Humidity
F 1597 Test Method for Determining the Actuation Force
3. Significance and Use
2
and Contact Force of a Membrane Switch
3.1 In establishing guidelines for specifying a membrane
F 1598 Test Method to Determine the Effects of Chemical/
switch, it is important to allow application design engineers to
Solvent Exposure to a Membrane Switch/Graphic Overlay
2
base their decisions on requirements using known reasonable,
(Spot Test Method)
achievable performance levels.
F 1661 Test Method for Determining the Contact Bounce
2
3.2 Over-specification increases cost and complexity;
Time of a Membrane Switch
under-specification risks not meeting performance criteria.
F 1662 Test Method for Verifying the Specified Dielectric
2
Withstand Voltage of a Membrane Switch
4. Procedure
F 1663 Test Method for Determining the Capacitance of a
2 4.1 In specifying the performance levels of a membrane
Membrane Switch
switch, select the characteristics you require from Table 1.
F 1680 Test Method for Determining the Circuit Resistance
2 4.1.1 If the typical values do not meet your requirements,
of a Membrane Switch
specify an alternative value.
F 1682 Test Method for Determining the Travel of a Mem-
2 4.1.2 Choose only those specifications relevant to your
brane Switch
application.
4.1.3 Required characteristics are the minimum require-
ments to be specified for a membrane switch. Recommended
1
This guide is under the jurisdiction of ASTM Committee F01 on Electronics
characteristics are appropriate to most applications. Optional
and is the direct responsibility of Subcommittee F01.18 on Membrane Switches.
characteristics can be specified for more demanding applica-
Current edition approved Dec. 10, 2002. Published February 2003.
2
Annual Book of ASTM Standards, Vol 10.05. tions.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
F2114–02
TABLE 1 Typical Values
ASTM Required or
Characteristic Typical Values
Designation Optional
A
Operating Voltage Required 5 – 24 V DC
A
Operating Current Required 1mA – 150mA
A
Circuit Resistance F 1680 Required 5 Ohms – 1K Ohms
Contact Closure Cycles F 1578 Required 100K – 1M Cycles
Temperature / Humidity F 1596 Recommended See F 1596 Level 1
Visual Inspection F 1595 Recommended To be Specified
Contact Bounce Time F 1661 Recommended #10ms
Actuation Force and Contact Force F 1597 Optional 2 oz – 32 oz
Chemical / Solvent F 1598 Optional To be Specified
Dielectric Withstand Voltage F 1662 Optional 250 VDC – 1K VDC 1 min
Capacitance F 1663 Optional #50 pf
Travel F 1682 Optional 0.002 – 0.10 in
...

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Standard Practice for Analysis and Interpretation of Light-Water Reactor Surveillance Neutron Exposure Results

SIGNIFICANCE AND USE
3.1 The objectives of a reactor vessel surveillance program are twofold. The first requirement of the program is to monitor changes in the fracture toughness properties of ferritic materials in the reactor vessel beltline region resulting from exposure to neutron irradiation and the thermal environment. The second requirement is to make use of the data obtained from the surveillance program to determine the conditions under which the vessel can be operated throughout its service life.  
3.1.1 To satisfy the first requirement of 3.1, the tasks to be carried out are straightforward. Each of the irradiation capsules that comprise the surveillance program may be treated as a separate experiment. The goal is to define and carry to completion a dosimetry program that will, a posteriori, describe the neutron field to which the material test specimens were exposed. The resultant information will then become part of a database applicable in a stricter sense to the specific plant from which the capsule was removed, but also in a broader sense to the industry as a whole.  
3.1.2 To satisfy the second requirement of 3.1, the tasks to be carried out are somewhat complex. The objective is to describe accurately the neutron field to which the pressure vessel itself will be exposed over its service life. This description of the neutron field must include spatial gradients within the vessel wall. Therefore, heavy emphasis must be placed on the use of neutron transport techniques as well as on the choice of a design basis for the computations. Since a given surveillance capsule measurement, particularly one obtained early in plant life, is not necessarily representative of long-term reactor operation, a simple normalization of neutron transport calculations to dosimetry data from a given capsule may not be appropriate (1-67).  
3.2 The objectives and requirements of a reactor vessel's support structure's surveillance program are much less stringent, and at present, are limited to ...
SCOPE
1.1 This practice covers the methodology, summarized in Annex A1, to be used in the analysis and interpretation of neutron exposure data obtained from LWR pressure vessel surveillance programs and, based on the results of that analysis, establishes a formalism to be used to evaluate present and future condition of the pressure vessel and its support structures2 (1-74).3  
1.2 This practice relies on, and ties together, the application of several supporting ASTM standard practices, guides, and methods (see Master Matrix E706) (1, 5, 13, 48, 49).2 In order to make this practice at least partially self-contained, a moderate amount of discussion is provided in areas relating to ASTM and other documents. Support subject areas that are discussed include reactor physics calculations, dosimeter selection and analysis, and exposure units.  
1.3 This practice is restricted to direct applications related to surveillance programs that are established in support of the operation, licensing, and regulation of LWR nuclear power plants. Procedures and data related to the analysis, interpretation, and application of test reactor results are addressed in Practice E1006, Guide E900, and Practice E1035.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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  • Standard
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    English language
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