ASTM D4960-20
(Test Method)Standard Test Method for Evaluation of Color for Thermoplastic Pavement Marking Materials
Standard Test Method for Evaluation of Color for Thermoplastic Pavement Marking Materials
SIGNIFICANCE AND USE
5.1 This test method provides a standard procedure for the determination of color of thermoplastic pavement marking materials. This test method can be used in conjunction with various thermoplastic pavement marking specifications to determine compliance of the material to said specification. This method can also be used by manufacturers of these materials to determine the uniformity of thermoplastic pavement marking materials from batch to batch.
5.2 There is a slight variation in color standards and colorimeters. This test method is only applicable when results are reported with information listing the instrument model designation and calibration standard.
SCOPE
1.1 This test method describes the instrumental determination of color of thermoplastic pavement marking materials using the CIE Y, x, y color measurement system.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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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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: D4960 − 20
Standard Test Method for
Evaluation of Color for Thermoplastic Pavement Marking
1
Materials
This standard is issued under the fixed designation D4960; 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 E313 Practice for Calculating Yellowness and Whiteness
Indices from Instrumentally Measured Color Coordinates
1.1 This test method describes the instrumental determina-
E1164 PracticeforObtainingSpectrometricDataforObject-
tion of color of thermoplastic pavement marking materials
Color Evaluation
using the CIE Y, x, y color measurement system.
E1347 Test Method for Color and Color-Difference Mea-
1.2 The values stated in SI units are to be regarded as the
surement by Tristimulus Colorimetry
standard. The values given in parentheses are for information
E1349 Test Method for Reflectance Factor and Color by
only.
Spectrophotometry Using Bidirectional (45°:0° or 0°:45°)
1.3 This standard does not purport to address all of the
Geometry
safety concerns, if any, associated with its use. It is the F412 Terminology Relating to Plastic Piping Systems
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to use.
3.1 Definitions—Definitions are in accordance with Termi-
1.4 This international standard was developed in accor-
nology D883, E284, and F412, unless otherwise indicated.
dance with internationally recognized principles on standard-
3.2 Definitions of Terms Specific to This Standard:
ization established in the Decision on Principles for the
3.2.1 thermochromism, n—achangeincolorthattakesplace
Development of International Standards, Guides and Recom-
in the thermoplastic material with temperature changes.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 3.2.2 thermoplastic pavement marking material, n—a
highly filled 100 % total solids material that when heated to a
2. Referenced Documents
molten state can be extruded or sprayed onto a pavement
2
surface and when cooled forms a solid, durable delineator.
2.1 ASTM Standards:
D883 Terminology Relating to Plastics
4. Summary of Test Method
D7307 PracticeforSamplingofThermoplasticTrafficMark-
ing Materials
4.1 The test specimen, representative of the material to be
D7308 Practice for Sample Preparation of Thermoplastic
tested, is taken from a molten sample obtained in accordance
Pavement Marking Materials
with Practice D7307. The thermoplastic specimen is prepared
E179 Guide for Selection of Geometric Conditions for
by pouring into aTFE-fluorocarbon coated pan, to form a patty
Measurement of Reflection and Transmission Properties
of approximately 7.6 cm (3 in.) in diameter. The patty is
of Materials
allowed to cool to room temperature before measuring the
E284 Terminology of Appearance
color. Color measurements are made on the flat side or the top
E308 PracticeforComputingtheColorsofObjectsbyUsing
side of the thermoplastic patty.
the CIE System
NOTE1—Nosignificantcolordifferencesareencounteredinreadingthe
top or bottom of the patty.
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
5. Significance and Use
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.44 on Traffic Coatings.
5.1 This test method provides a standard procedure for the
Current edition approved July 1, 2020. Published July 2020. Originally approved
determination of color of thermoplastic pavement marking
in 1989. Last previous edition approved in 2013 as D4960 – 08 (2013). DOI:
10.1520/D4960-20.
materials. This test method can be used in conjunction with
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
various thermoplastic pavement marking specifications to de-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
termine compliance of the material to said specification. This
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. methodcanalsobeusedbymanufacturersofthesematerialsto
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D4960 − 20
determine the uniformity of thermoplastic pavement marking 7.6.1 If there is any evidence of thermochromism (m
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4960 − 08 (Reapproved 2013) D4960 − 20
Standard Test Method for
Evaluation of Color for Thermoplastic TrafficPavement
1
Marking Materials
This standard is issued under the fixed designation D4960; 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
1.1 This test method describes the instrumental determination of color of thermoplastic trafficpavement marking materials using
the CIE tristimulusY,x,y color measurement system.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D883 Terminology Relating to Plastics
D7307 Practice for Sampling of Thermoplastic Traffic Marking Materials
D7308 Practice for Sample Preparation of Thermoplastic Pavement Marking Materials
E179 Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
E284 Terminology of Appearance
E308 Practice for Computing the Colors of Objects by Using the CIE System
E313 Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
E1164 Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E1349 Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45°:0° or 0°:45°) Geometry
F412 Terminology Relating to Plastic Piping Systems
3. Terminology
3.1 Definitions—Definitions are in accordance with Terminology D883, E284, and F412, unless otherwise indicated.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 thermochromism, n—a change in color that takes place in the thermoplastic material with temperature changes.
3.2.2 thermoplastic traffıcpavement marking material, n—a highly filled 100 % total solids highway marking material that when
heated to a molten state can be extruded or sprayed onto a roadpavement surface and when cooled forms a solid, durable delineator.
4. Summary of Test Method
4.1 The test specimen, representative of the material to be tested, is taken from a molten sample obtained in accordance with
Practice D7307. The thermoplastic specimen is prepared by pouring into a TFE-fluorocarbon coated pan, to form a patty of
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.44 on Traffic Coatings.
Current edition approved Nov. 1, 2013July 1, 2020. Published November 2013July 2020. Originally approved in 1989. Last previous edition approved in 20082013 as
D4960D4960 – 08 (2013). – 08. DOI: 10.1520/D4960-08R13.10.1520/D4960-20.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4960 − 20
approximately 7.6 cm (3 in.) in diameter. The patty is allowed to cool to room temperature before measuring the color. Color
measurements are made on the flat side or the top side of the thermoplastic patty.
NOTE 1—No significant color differences are encountered in reading the top or bottom of the patty.
5. Significance and Use
5.1 This test method provides a standard procedure for the determination of color of thermoplastic trafficpavement marking
materials. This test method can be used in con
...
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