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ASTM D4960-08(2013)

(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
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 materials to determine the uniformity of thermoplastic traffic 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 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.

General Information

Status
Historical
Publication Date
31-Oct-2013
ICS
87.040 - Paints and varnishes
93.080.30 - Road equipment and installations
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.44 - Traffic Coatings
Current Stage
Ref Project

Relations

Replaces
ASTM D4960-08 - Standard Test Method for Evaluation of Color for Thermoplastic Traffic Marking Materials
Effective Date
01-Nov-2013
Referred By
ASTM D7942-15(2023) - Standard Specification for Thermoplastic Pavement Markings in Non Snow Plow Areas
Effective Date
01-Nov-2013

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ASTM D4960-08(2013) - Standard Test Method for Evaluation of Color for Thermoplastic Traffic Marking MaterialsASTM D4960-08(2013) - Standard Test Method for Evaluation of Color for Thermoplastic Traffic Marking Materials
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ASTM D4960-08(2013) - Standard Test Method for Evaluation of Color for Thermoplastic Traffic Marking Materials
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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: D4960 − 08 (Reapproved 2013)
Standard Test Method for
Evaluation of Color for Thermoplastic Traffic 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 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
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
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 Nov. 1, 2013. Published November 2013. Originally
materials from batch to batch.
approved in 1989. Last previous edition approved in 2008 as D4960 – 08. DOI:
10.1520/D4960-08R13.
5.2 There is a slight variation in color standards and
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D4960 − 08 (2013)
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¯
Deviation Deviation
r R
ments of Guide E179, Practice E1164, Test Method E1347,
Sr SR
Test Method E1349, and Practice E308 (bidirectional 45°:0°, Material A 0.311304 0.000547 0.001242 0.001532 0.003477
Material B 0.318659 0.000549 0.000954 0.001536 0.002670
capable of reporting data for the CIE D65/2°, D6510° or C/2°
Material C 0.491804 0.000463 0.001885 0.001296 0.005278
illuminant/observer conditions).
Material D 0.497219 0.000385 0.001385 0.001078 0.003878
6.3 TFE-fluorocarbon Baking Pans or Uncoated Pint Can
Lids, for forming 7.6-cm (3-in.) diameter patties.
TABLE 3 CIE y
7. Procedure
Repeatabil- Reproduc-
Repeatabil- Reproduc-
ity ibility
Average
ity ibility
7.1 Obtain a representative sample of the thermoplastic
Standard Standard
Limit Limit
x¯
Deviation Deviation
pavement marking material following the guidelines of Prac-
r R
Sr SR
tice D7307. Prepare the sample for testing by following
Material A 0.330322 0.002556 0.005478 0.007156 0.015338
Practice D7308.
Material B 0.337504 0.002493 0.004929 0.006979 0.013800
Material C 0.463115 0.001074 0.003177 0.003007 0.008895
7.2 Prepare the thermoplastic sample obtained from step
Material D 0.460333 0.001096 0.002286 0.003068 0.006400
7.1. Allow the material to remain at the specified temperature
and specified time, under constant agitation, as required by the
governing specification.
8. Report
7.3 Remove the thermoplastic sample using a 60-mL(2 oz.)
8.1 Report the following information:
...

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