ASTM E1478-97(2015)
(Practice)Standard Practice for Visual Color Evaluation of Transparent Sheet Materials (Withdrawn 2022)
Standard Practice for Visual Color Evaluation of Transparent Sheet Materials (Withdrawn 2022)
SIGNIFICANCE AND USE
5.1 This practice applies to production quality control and customer acceptance of regularly transmitting sheet materials such as tinted windows where visual color discrimination is critical.
SCOPE
1.1 This practice was developed to help its users critically judge the transmitted color appearance of transparent sheet materials. Its primary application is for colored flat glass and plastic materials.
1.2 This practice is not meant to be used to evaluate colors of curved, diffusing, self-luminous, or opaque materials.
1.3 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WITHDRAWN RATIONALE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 was developed to help its users critically judge the transmitted color appearance of transparent sheet materials. Its primary application is for colored flat glass and plastic materials.
Formerly under the jurisdiction of Committee E12 on Color and Appearance, this practice was withdrawn in May 2022. This standard is being withdrawn without replacement due to its limited use by industry.
General Information
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1478 − 97 (Reapproved 2015)
Standard Practice for
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Visual Color Evaluation of Transparent Sheet Materials
This standard is issued under the fixed designation E1478; 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 materials, and light source are prescribed in order to derive
good color judgments from their interactions.
1.1 This practice was developed to help its users critically
judge the transmitted color appearance of transparent sheet
5. Significance and Use
materials. Its primary application is for colored flat glass and
5.1 This practice applies to production quality control and
plastic materials.
customer acceptance of regularly transmitting sheet materials
1.2 This practice is not meant to be used to evaluate colors
such as tinted windows where visual color discrimination is
of curved, diffusing, self-luminous, or opaque materials.
critical.
1.3 This standard does not purport to address all of the
6. Apparatus
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 6.1 Theapparatusshallconsistofspecimenholders,product
color standards, and defined light sources.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 6.1.1 Specimen Holders—These devices must hold the
specimen(s) and standard in contiguous positions, in the same
2. Referenced Documents
plane, so that they may be viewed, relative to the light source,
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for maximum color discrimination.
2.1 ASTM Standards:
6.1.1.1 An indoor specimen holder should be a ventilated
D1729 Practice for Visual Appraisal of Colors and Color
box, coated with a flat white ceiling paint on its inside,
Differences of Diffusely-Illuminated Opaque Materials
containing evenly spaced fluorescent lamps with a flat, white
E284 Terminology of Appearance
diffuser (glass or plastic) between them and the samples, and
E1499 Guide for Selection, Evaluation, and Training of
have edge supports for the specimens and standards. Fig. 1 is
Observers
typical, housing two Standard Cool White Fluorescent
2.2 ASTM Adjuncts:
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(CIEF2) lamps.
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Color Photo—Outdoor Specimen Holder
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6.1.1.2 An outdoor specimen holder should allow the
specimen and standard to be viewed contiguously in the same
3. Terminology
plane with daylight transmitted through them. Alternatively,
3.1 For the definitions of appearance terms used in this
the transmitted light may be viewed after reflection from a
practice, refer to Terminology E284.
diffuse colored surface, such as a carpet, to enhance color
difference. These holders are usually large window frame
4. Summary of Practice
structures. See Fig. 2.
4.1 This practice describes the recommended visual proce-
6.1.2 Product Color Standards—These standards shall be
dure to evaluate color by transmittance of transparent sheet
similar in shape, size, and spectral characteristics to specimens
materials. The spatial relationships between the observer,
being evaluated for color. The observer shall use color-
tolerance standards to provide an unambiguous judgment of a
product’s acceptable color limits.
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This practice is under the jurisdiction of ASTM Committee E12 on Color and
Appearance and is the direct responsibility of Subcommittee E12.11 on Visual 7. Test Specimen Preparation
Methods.
7.1 Take enough production test specimens from known
Current edition approved Nov. 1, 2015. Published November 2015. Originally
approved in 1992. Last previous edition approved in 2009 as E1478 – 97 (2009). sampling positions to properly disclose the product’s visual
DOI: 10.1520/E1478-97R15.
color range. Refer to Fig. 3.
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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
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Standards volume information, refer to the standard’s Document Summary page on See Publication CIE No. 15.2, Tables 3.1 and 3.2. CIE Publications are
the ASTM website. available from U.S. National Committee of the CIE (International Commission on
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Available from ASTM International Headquarters. Order Adjunct ADJE1478. Illumination), C/oThomas M. Lemons,TLA-Lighting Consultants, Inc., 7 Pond St.,
Original adjunct produced in 1992. Salem, MA 01970, http://www.cie-usnc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E1478 − 97 (2015)
through the test specimen. Make color judgments, to avoid
color fatigue, by quick glances at the test specimen and
...
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