ASTM D4960-08
(Test Method)Standard Test Method for Evaluation of Color for Thermoplastic Traffic Marking Materials
Standard Test Method for Evaluation of Color for Thermoplastic Traffic Marking Materials
SIGNIFICANCE AND USE
This test method provides a standard procedure for the determination of color of thermoplastic traffic 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 traffic marking materials from batch to batch.
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 traffic marking materials using the CIE tristimulus 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D4960 − 08
StandardTest Method for
Evaluation of Color for Thermoplastic Traffic 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* E1349 Test Method for Reflectance Factor and Color by
Spectrophotometry Using Bidirectional (45°:0° or 0°:45°)
1.1 This test method describes the instrumental determina-
Geometry
tion of color of thermoplastic traffic marking materials using
F412 Terminology Relating to Plastic Piping Systems
the CIE tristimulus color measurement system.
1.2 The values stated in SI units are to be regarded as the
3. Terminology
standard. The values given in parentheses are for information
3.1 Definitions—Definitions are in accordance with Termi-
only.
nology D883, E284 and F412, unless otherwise indicated.
1.3 This standard does not purport to address all of the
3.2 Definitions of Terms Specific to This Standard:
safety concerns, if any, associated with its use. It is the
3.2.1 thermochromism, n—achangeincolorthattakesplace
responsibility of the user of this standard to establish appro-
in the thermoplastic material with temperature changes.
priate safety and health practices and determine the applica-
3.2.2 thermoplastic traffıc marking material, n—a highly
bility of regulatory limitations prior to use.
filled 100 % total solids highway marking material that when
2. Referenced Documents
heated to a molten state can be extruded or sprayed onto a road
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
Traffic 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
E313 Practice for Calculating Yellowness and Whiteness
top or bottom of the patty.
Indices from Instrumentally Measured Color Coordinates
E1164 PracticeforObtainingSpectrometricDataforObject-
5. Significance and Use
Color Evaluation
5.1 This test method provides a standard procedure for the
E1347 Test Method for Color and Color-Difference Mea-
determination of color of thermoplastic traffic marking mate-
surement by Tristimulus Colorimetry
rials. 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
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
can also be used by manufacturers of these materials to
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.44 on Traffic Coatings.
determine the uniformity of thermoplastic traffic marking
Current edition approved July 1, 2008. Published August 2008. Originally
materials from batch to batch.
ε1
approved in 1989. Last previous edition approved in 2006 as D4960 - 06 . DOI:
10.1520/D4960-08.
5.2 There is a slight variation in color standards and
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
colorimeters. This test method is only applicable when results
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
are reported with information listing the instrument model
Standards volumeinformation,refertothestandard’sDocumentSummarypageon
the ASTM website. designation and calibration standard.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D4960 − 08
TABLE 2 CIE x
6. Apparatus
Repeatabil- Reproduc-
6.1 60 mL (2 oz.) Metal Ladle. Repeatabil- Reproduc-
ity ibility
Average
ity ibility
Standard Standard
6.2 Color Measuring Instrument, conforming to all require-
Limit Limit
x¯
Deviat
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
´1
Designation:D4960–06 Designation:D4960–08
Standard Test Method for
Evaluation of Color for Thermoplastic Traffic Marking
1
Materials
This standard is issued under the fixed designation D 4960; 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
´ NOTE—Research report was added editorially in March 2007.
1. Scope*
1.1 This test method describes the instrumental determination of color of thermoplastic traffic marking materials using the CIE
tristimulus 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D 883 Terminology Relating to Plastics
D 7307 Practice for Sampling of Thermoplastic Traffic Marking Materials
D 7308 Practice for Sample Preparation of Thermoplastic Traffic Marking Materials
E 179 Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
E 284 Terminology of Appearance
E 308 Practice for Computing the Colors of Objects by Using the CIE System
E 313 Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
E 1164 Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E 1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E 1349 Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45:0 or 0:45) Geometry
F 412 Terminology Relating to Plastic Piping Systems
3. Terminology
3.1 Definitions—Definitions are in accordance with Terminology D883, E284 and F412D 883, E 284 and F 412, 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 traffıc 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 road 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 D 7307. The thermoplastic specimen is prepared by pouring into a TFE-fluorocarbon coated pan, to form a patty of
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.
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. 15, 2006. Published January 2007 . Originally approved in 1989. Last previous edition approved in 1998 as D4960-89(1998).
´1
Current edition approved July 1, 2008. Published August 2008. Originally approved in 1989. Last previous edition approved in 2006 as D 4960 - 06 .
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D4960–08
5. Significance and Use
5.1 This test method provides a standard procedure for the determination of color of thermoplastic traffic 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
...
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