ASTM D6628-01

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: D 6628 – 01
Standard Specification for
Color of Pavement Marking Materials
This standard is issued under the fixed designation D 6628; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.2.1 pavement marking structured materials— a pavement
marking material with a pattern or other texture which can
1.1 This specification covers the daytime and nighttime
cause the material to change in appearance at near grazing
color of retroreflective pavement marking materials used for
viewing angles significantly from its appearance at 45° view-
traffic control lane markings and symbols on road surfaces. It
ing angle.
is intended to apply throughout the service life of the material.
1.2 This specification applies to both painted and tape lines,
4. Significance and Use
including thermoplastic, epoxy and other types.
4.1 This specification is intended for use during the lifetime
1.3 This specification is not applicable to the testing, for
of the retroreflective pavement marking on the road surface.
quality control purposes, of marking material without added
Specifications for characteristics other than color are found in
drop-on beads.
other ASTM documents.
1.4 In addition, it does not describe requirements other than
color such as retroreflectance.
5. Performance Requirements
2. Referenced Documents 5.1 Chromaticity Limits—The material must plot within the
boundaries described by the four corner points listed in Tables
2.1 ASTM Standards:
1 and 2 when measured in accordance with the test methods in
D 4061 Test Method for Retroreflectance of Horizontal
2 Section 7.
Coatings
5.1.1 Table 1—Daytime (x,y) chromaticity coordinate’s of
D 6359 Specification for Minimum Retroreflectance of
the corners of the regions for the colors of white, yellow, blue
Newly Applied Pavement Marking Using Portable Hand-
3 and red pavement markings.
Operated Instruments
E 284 Terminology of Appearance
NOTE 1—Daytime color testing of pavement markings excludes struc-
E 308 Practice for Computing the Colors of Objects by tured materials. They must be tested at the viewing angle encountered in
usage using diffuse illumination and 87.71° viewing angle.
Using the CIE System
E 808 Practice for Describing Retroreflection
5.1.2 Table 2—Nighttime (x,y) chromaticity coordinates of
E 811 Practice for Measuring Colorimetric Characteristics
the corners of the regions for the colors of white and yellow
of Retroreflectors Under Nighttime Conditions
pavement markings.
E 1349 Test Method for Reflectance Factor and Color by
5.1.3 Chromaticity and Retroreflectance— The third dimen-
Spectrophotometry Using Bidirectional Geometry
sion of the perceived appearance of the road marking at night
2.2 CIE Publications:
is the retroreflectance. This quantity is specified in other ASTM
No. 15.2 Colorimetry
documents on pavement markings and is not part of pavement
No. 39.2 Recommendations for Surface Colours for Visual
marking nighttime color specification. Research has shown that
Signalling
the nighttime color as specified by chromaticity is sufficient
and adequate for the color naming of the material as viewed
3. Terminology
under nighttime conditions.
3.1 Definitions:
5.2 Daytime Lightness Limits (Y Tristimulus Coordinate)—
3.1.1 Definitions of appearance terms in Terminology E 284
The lightness limits shall conform to Table 3. (The 45/0 and
are applicable to this specification.
0/45 geometry is the current standard practice for these
3.2 Definitions of Terms Specific to This Standard:
measurements.
NOTE 2—Daytime luminance factor testing of pavement markings
This specification is under the jurisdiction of ASTM Committee D04 on Road
excludes structured materials. They must be tested at the viewing angle
and Paving Materials and is the direct responsibility of Subcommittee D04.38 on
encountered in usage using diffuse illumination and 87.71° viewing angle.
Highway Traffic Control Materials.
Current edition approved Jan. 10, 2001. Published March 2001.
6. Specimen Preparation
Annual Book of ASTM Standards, Vol 06.01.
Annual Book of ASTM Standards, Vol 04.03.
6.1 The test specimen shall be measured mounted on a flat
Available from USNC-CIE Publications Office, TLA Lighting Consultants, 2
test panel with a minimum test area of 0.1 m in size. Typical
Inc., 7 Pond Street, Salem
...