ASTM D4956-00

Standard Specification for Retroreflective Sheeting for Traffic Control

SCOPE
1.1 This specification covers flexible, non-exposed glass bead lens and microprismatic, retroreflective sheeting designed for use on traffic control signs, delineators, barricades, and other devices.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification. 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: 09-Aug-2001
• ICS: 93.080.30 - Road equipment and installations
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.38 - Highway Traffic Control Materials

Relations

• Replaced By: ASTM D4956-01 - Standard Specification for Retroreflective Sheeting for Traffic Control
• Effective Date: 10-Aug-2001
• Referred By: ASTM D8514/D8514M-23 - Standard Specification for Flexible, Retroreflective Sheeting for Use in High Visibility Vehicle Markings
• Effective Date: 10-Aug-2001
• Referred By: ASTM E1709-16(2022) - Standard Test Method for Measurement of Retroreflective Signs Using a Portable Retroreflectometer at a 0.2 Degree Observation Angle
• Effective Date: 10-Aug-2001
• Referred By: ASTM E2706-18 - Standard Practice for Equipment Technology and Operations for Mobile and Plant-Based Secure Destruction Safety Requirements
• Effective Date: 10-Aug-2001
• Referred By: ASTM E3165-18 - Standard Test Method for Nighttime Retroreflected Chromaticity of Retroreflective Sheeting
• Effective Date: 10-Aug-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 4956 – 00
Standard Specification for
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Retroreflective Sheeting for Traffic Control
This standard is issued under the fixed designation D 4956; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E 1349 Test Method for Reflectance Factor and Color by
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Spectrophotometry Using Bidirectional Geometry
1.1 This specification covers flexible, non-exposed glass
G 7 Practice for Atmospheric Environmental Exposure
bead lens and microprismatic, retroreflective sheeting designed
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Testing of Nonmetallic Materials
for use on traffic control signs, delineators, barricades, and
G 23 Practice for Operating Light-Exposure Apparatus
other devices.
(Carbon-Arc Type) With and Without Water for Exposure
1.2 The values stated in inch-pound units are to be regarded
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of Nonmetallic Materials
as the standard. The values given in parentheses are for
G 147 Practice for Conditioning and Handling of Nonme-
information only.
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tallic Materials for Natural and Artificial Weathering Tests
1.3 The following safety hazards caveat pertains only to the
G 152 Practice for Operating Open-Flame Carbon-Arc
test methods portion, Section 7, of this specification. This
5
Light Apparatus for Exposure of Nonmetallic Materials
standard does not purport to address all of the safety concerns,
G 153 Practice for Operating Enclosed Carbon Arc Light
if any, associated with its use. It is the responsibility of the user
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Apparatus for Exposure of Nonmetallic Materials
of this standard to establish appropriate safety and health
2.2 Federal Specifications:
practices and determine the applicability of regulatory limita-
FP-92 Standard Specifications for Construction of Roads
tions prior to use.
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and Bridges on Federal Highway Projects
2. Referenced Documents
L-S-300C Federal Specification for Sheeting and Tape,
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Reflective: Non Exposed Lens
2.1 ASTM Standards:
2.3 AASHTO Specification:
B 209 Specification for Aluminum and Aluminum-Alloy
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2
M 268-84 I
Sheet and Plate
B 209M Specification for Aluminum and Aluminum-Alloy
3. Terminology
2
Sheet and Plate [Metric]
3
3.1 Definitions—Definitions of terms are as described in
B 449 Practice for Chromate Treatments on Aluminum
4
Terminology E 284 and Practice E 808.
D 523 Test Method for Specular Gloss
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3.2 Definitions of Terms Specific to This Standard:
E 284 Terminology of Appearance
3.2.1 reboundable sheeting, n—retroreflective material in-
E 308 Practice for Computing the Colors of Objects by
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tended to be attached to flexible impact resistant plastic
Using the CIE System
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devices, such as traffic drum-like channelizing devices.
E 808 Practice for Describing Retroreflection
E 810 Test Method for Coefficient of Retroreflection or
4. Classification
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Retroreflective Sheeting
4.1 Retroreflective sheeting shall consist of a white or
E 991 Practice for Color Measurement of Fluorescent
4 colored sheeting having a smooth outer surface and that
Specimens
essentially has the property of a retroreflector over its entire
E 1164 Practice for Obtaining Spectrophotometric Data for
4 surface. There are six types and five classes of retroreflective
Object-Color Evaluation
sheeting. Typical examples of materials and applications are
E 1347 Test Method for Color and Color-Difference Mea-
4 provided for descriptive information only and are not intended
surement by Tristimulus (Filter) Colorimetry
to be limitations or recommendations.
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This specification is under the jurisdiction of ASTM Committee D04 on Road
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and Paving Materials and is the direct responsibility of Subcommittee D04.38 on Annual Book of ASTM Standards, Vol 14.02.
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Highway Traffic Materials. Available from Superintendent of Documents, U.S. Government Printing
Current edition approved Jan. 10, 2000. Published April 2000. Originally Office, Washington, DC 20402.
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published as D 4956 – 89. Last previous edition D 4956 – 99. Available from General Services Administration, 470 East L’Enfant Plaza S.W.,
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Annual Book of ASTM Standards, Vol 02.02. Suite 8100, Washington, DC 20407.
3 8
Annual Book of ASTM Standards, Vol 02.05. Available from the American Association of State Highway and Transportation
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Annual Book of ASTM Standards, Vol 06.01. Officials, 444 N. Capitol St., N.W., Washington, DC 20001.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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D 4956
4.1.1 The typical applications for the retroreflective sheet- (38°C) without damage to the material.
ing addressed in this specifi
...