ASTM E1478-97(2003)

Standard Practice for Visual Color Evaluation of Transparent Sheet Materials

SIGNIFICANCE AND USE
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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2003
• ICS: 17.180.20 - Colours and measurement of light
• ICS: 81.040.30 - Glass products
• ICS: 83.140.10 - Films and sheets
• Technical Committee: E12 - Color and Appearance
• Drafting Committee: E12.11 - Visual Methods

Relations

• Replaces: ASTM E1478-97 - Standard Practice for Visual Color Evaluation of Transparent Sheet Materials
• Effective Date: 01-Dec-2003
• Replaced By: ASTM E1478-97(2009) - Standard Practice for Visual Color Evaluation of Transparent Sheet Materials
• Effective Date: 01-Dec-2009
• Referred By: ASTM E1808-96(2021) - Standard Guide for Designing and Conducting Visual Experiments
• Effective Date: 01-Dec-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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(Reapproved2003)
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 5. Significance and Use
1.1 This practice was developed to help its users critically 5.1 This practice applies to production quality control and
judge the transmitted color appearance of transparent sheet customer acceptance of regularly transmitting sheet materials
materials. Its primary application is for colored flat glass and such as tinted windows where visual color discrimination is
plastic materials. critical.
1.2 This practice is not meant to be used to evaluate colors
6. Apparatus
of curved, diffusing, self-luminous, or opaque materials.
1.3 This standard does not purport to address all of the 6.1 Theapparatusshallconsistofspecimenholders,product
color standards, and defined light sources.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 6.1.1 Specimen Holders—These devices must hold the
specimen(s) and standard in contiguous positions, in the same
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. plane, so that they may be viewed, relative to the light source,
for maximum color discrimination.
2. Referenced Documents
6.1.1.1 An indoor specimen holder should be a ventilated
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2.1 ASTM Standards: box, coated with a flat white ceiling paint on its inside,
D1729 Practice for Visual Appraisal of Colors and Color containing evenly spaced fluorescent lamps with a flat, white
Differences of Diffusely-Illuminated Opaque Materials diffuser (glass or plastic) between them and the samples, and
E284 Terminology of Appearance have edge supports for the specimens and standards. Fig. 1 is
E1499 Guide for Selection, Evaluation, and Training of typical, housing two Standard Cool White Fluorescent
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Observers (CIEF2) lamps.
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2.2 ASTM Adjuncts: ASTM 6.1.1.2 An outdoor specimen holder should allow the
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Color Photo—Outdoor Specimen Holder specimen and standard to be viewed contiguously in the same
plane with daylight transmitted through them. Alternatively,
3. Terminology
the transmitted light may be viewed after reflection from a
3.1 For the definitions of appearance terms used in this
diffuse colored surface, such as a carpet, to enhance color
practice, refer to Terminology E284. difference. These holders are usually large window frame
structures. See Fig. 2.
4. Summary of Practice
6.1.2 Product Color Standards—These standards shall be
4.1 This practice describes the recommended visual proce-
similar in shape, size, and spectral characteristics to specimens
dure to evaluate color by transmittance of transparent sheet
being evaluated for color. The observer shall use color-
materials. The spatial relationships between the observer,
tolerance standards to provide an unambiguous judgment of a
materials, and light source are prescribed in order to derive
product’s acceptable color limits.
good color judgments from their interactions.
7. Test Specimen Preparation
7.1 Take enough production test specimens from known
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This practice is under the jurisdiction of ASTM Committee E12 on Color and
sampling positions to properly disclose the product’s visual
Appearance and is the direct responsibility of Subcommittee E12.11 on Visual
color range. Refer to Fig. 3.
Methods.
Current edition approved Dec. 1, 2003. Published December 2003. Originally
approved in 1992. Last previous edition approved in 1997 as E1478 – 97. DOI:
10.1520/E1478-97R03.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM See Publication CIE No. 15.2, Tables 3.1 and 3.2. CIE Publications are
Standards volume information, refer to the standard’s Document Summary page on available from The U.S. National Committee of the CIE (International Commission
the ASTM website. on Illumination), C/o Thomas M. Lemons, TLA-Lighting Consultants, Inc., 7 Pond
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Available from ASTM International Headquarters. Order Adjunct ADJE1478. St., Salem, MA 01970.
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E1478–97 (2003)
through the test specimen. Make color judgments, to avoid
color fatigue, by quick glances at the test specimen and
standard followed by deliberate consideration of the resultin
...