ASTM F1595-00(2020)
(Practice)Standard Practice for Viewing Conditions for Visual Inspection of Membrane Switches (Withdrawn 2023)
Standard Practice for Viewing Conditions for Visual Inspection of Membrane Switches (Withdrawn 2023)
SIGNIFICANCE AND USE
3.1 This practice is designed to enable all manufacturers and users of membrane switches to perform visual inspections under uniform conditions. The aim is to eliminate key variables in the inspection procedures so specimens can be viewed more objectively.
3.2 Viewing specimens under these conditions could reveal cosmetic defects in the specimen. Many of these defects or flaws are due to variables in the raw materials or the manufacturing process. These cosmetic flaws or defects do not necessarily mean that the specimen is defective. The determination of whether a specimen is acceptable or defective varies with the application and the needs of the user. Therefore, customer and vendor must agree on acceptable quality standards prior to manufacturing.
3.3 This practice does not establish standards for acceptability of specimens, only how they must be viewed (inspected).
3.4 This practice is not intended to be used for color matching purposes. Color matching must be performed under more precise lighting conditions outside the scope of this practice.
SCOPE
1.1 This practice covers procedures for performing visual inspection of membrane switches. This includes visual inspection of overlays and circuitry.
1.2 This practice defines lighting parameters, distance from eye to specimen, viewing angle, and the viewing time allowed for a specific size specimen.
1.3 This practice is only designed for visual inspection of aesthetic qualities of membrane switches. It is not intended for color matching or gloss measurement.
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.
WITHDRAWN RATIONALE
This practice covers procedures for performing visual inspection of membrane switches. This includes visual inspection of overlays and circuitry.
Formerly under the jurisdiction of Committee F01 on Electronics, this practice was withdrawn in November 2023. This standard is being withdrawn without replacement because Committee F01 was disbanded.
General Information
Relations
Buy Standard
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: F1595 − 00 (Reapproved 2020)
Standard Practice for
Viewing Conditions for Visual Inspection of Membrane
Switches
This standard is issued under the fixed designation F1595; 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 2.1.3 continuous scanning motion—viewing technique
whereby the inspector views the whole specimen, in the time
1.1 This practice covers procedures for performing visual
allowed, without stopping in any one area of the panel.
inspection of membrane switches. This includes visual inspec-
2.1.4 cosmetic flaws (or defects)— see aesthetic qualities.
tion of overlays and circuitry.
2.1.5 foot–candles—unit of illuminance equal to one lumen
1.2 This practice defines lighting parameters, distance from
per square foot.
eye to specimen, viewing angle, and the viewing time allowed
for a specific size specimen.
2.1.6 membrane switch—a momentary switching device in
which at least one contact is on, or made of, a flexible
1.3 This practice is only designed for visual inspection of
substrate.
aesthetic qualities of membrane switches. It is not intended for
color matching or gloss measurement. 2.1.7 overlay—outer layer of a membrane switch on which
the graphics are printed.
1.4 This standard does not purport to address all of the
2.1.7.1 Discussion—Not all membrane switches have an
safety concerns, if any, associated with its use. It is the
overlay.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 2.1.8 viewing angle—the angle between the line of sight of
mine the applicability of regulatory limitations prior to use. the observer and the surface of the specimen.
1.5 This international standard was developed in accor-
2.1.9 window areas—any area of a membrane switch
dance with internationally recognized principles on standard-
through which a display, light, lamp, or other graphics, are
ization established in the Decision on Principles for the
viewed.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3. Significance and Use
Barriers to Trade (TBT) Committee.
3.1 Thispracticeisdesignedtoenableallmanufacturersand
2. Terminology users of membrane switches to perform visual inspections
underuniformconditions.Theaimistoeliminatekeyvariables
2.1 Definitions:
in the inspection procedures so specimens can be viewed more
2.1.1 aesthetic qualities—these relate to the cosmetic ap-
objectively.
pearance of the membrane switch and include such character-
istics as printing quality, uniformity of finish, material 3.2 Viewing specimens under these conditions could reveal
cosmetic defects in the specimen. Many of these defects or
attributes, and mechanical integrity.
flaws are due to variables in the raw materials or the manu-
2.1.1.1 Discussion—These are often described by such
facturing process. These cosmetic flaws or defects do not
termsasscratches,bubbles,dents,dings,bumps,blurs,smears,
necessarily mean that the specimen is defective. The determi-
voids,pinholes,etc.Thesearehighlysubjectivetermsthatdefy
nation of whether a specimen is acceptable or defective varies
precise definition but which are nonetheless identifiable and
with the application and the needs of the user. Therefore,
measurable.
customer and vendor must agree on acceptable quality stan-
2.1.2 color matching
...
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: F1595 − 00 (Reapproved 2020)
Standard Practice for
Viewing Conditions for Visual Inspection of Membrane
Switches
This standard is issued under the fixed designation F1595; 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 2.1.3 continuous scanning motion—viewing technique
whereby the inspector views the whole specimen, in the time
1.1 This practice covers procedures for performing visual
allowed, without stopping in any one area of the panel.
inspection of membrane switches. This includes visual inspec-
2.1.4 cosmetic flaws (or defects)— see aesthetic qualities.
tion of overlays and circuitry.
2.1.5 foot–candles—unit of illuminance equal to one lumen
1.2 This practice defines lighting parameters, distance from
per square foot.
eye to specimen, viewing angle, and the viewing time allowed
for a specific size specimen.
2.1.6 membrane switch—a momentary switching device in
which at least one contact is on, or made of, a flexible
1.3 This practice is only designed for visual inspection of
substrate.
aesthetic qualities of membrane switches. It is not intended for
color matching or gloss measurement. 2.1.7 overlay—outer layer of a membrane switch on which
the graphics are printed.
1.4 This standard does not purport to address all of the
2.1.7.1 Discussion—Not all membrane switches have an
safety concerns, if any, associated with its use. It is the
overlay.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 2.1.8 viewing angle—the angle between the line of sight of
mine the applicability of regulatory limitations prior to use. the observer and the surface of the specimen.
1.5 This international standard was developed in accor-
2.1.9 window areas—any area of a membrane switch
dance with internationally recognized principles on standard-
through which a display, light, lamp, or other graphics, are
ization established in the Decision on Principles for the
viewed.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3. Significance and Use
Barriers to Trade (TBT) Committee.
3.1 This practice is designed to enable all manufacturers and
users of membrane switches to perform visual inspections
2. Terminology
under uniform conditions. The aim is to eliminate key variables
2.1 Definitions:
in the inspection procedures so specimens can be viewed more
2.1.1 aesthetic qualities—these relate to the cosmetic ap-
objectively.
pearance of the membrane switch and include such character-
3.2 Viewing specimens under these conditions could reveal
istics as printing quality, uniformity of finish, material
cosmetic defects in the specimen. Many of these defects or
attributes, and mechanical integrity.
flaws are due to variables in the raw materials or the manu-
2.1.1.1 Discussion—These are often described by such
facturing process. These cosmetic flaws or defects do not
terms as scratches, bubbles, dents, dings, bumps, blurs, smears,
necessarily mean that the specimen is defective. The determi-
voids, pinholes, etc. These are highly subjective terms that defy
nation of whether a specimen is acceptable or defective varies
precise definition but which are nonetheless identifiable and
with the application and the needs of the user. Therefore,
measurable.
customer and vendor must agree on acceptable quality stan-
2.1.2 color matching—procedure by which a color is com-
dards prior to manufacturing.
pared to a
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.