ASTM D4956-13
(Specification)Standard Specification for Retroreflective Sheeting for Traffic Control
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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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.
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Designation:D4956 −13
StandardSpecification for
1
Retroreflective Sheeting for Traffic Control
This standard is issued under the fixed designation D4956; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope E991Practice for Color Measurement of Fluorescent Speci-
mens Using the One-Monochromator Method
1.1 This specification covers flexible, non-exposed glass
E1164PracticeforObtainingSpectrometricDataforObject-
beadlensandmicroprismatic,retroreflectivesheetingdesigned
Color Evaluation
for use on traffic control signs, delineators, barricades, and
E1247Practice for Detecting Fluorescence in Object-Color
other devices.
Specimens by Spectrophotometry
1.2 The values stated in inch-pound units are to be regarded
E1347Test Method for Color and Color-Difference Mea-
as standard. The values given in parentheses are mathematical
surement by Tristimulus Colorimetry
conversions to SI units that are provided for information only
E1349Test Method for Reflectance Factor and Color by
and are not considered standard.
Spectrophotometry Using Bidirectional (45°:0° or 0°:45°)
1.3 The following safety hazards caveat pertains only to the
Geometry
test methods portion, Section 7, of this specification. This
E2152Practice for Computing the Colors of Fluorescent
standard does not purport to address all of the safety concerns,
Objects from Bispectral Photometric Data
if any, associated with its use. It is the responsibility of the user
E2153Practice for Obtaining Bispectral Photometric Data
of this standard to establish appropriate safety and health
for Evaluation of Fluorescent Color
practices and determine the applicability of regulatory limita-
E2301Test Method for Daytime Colorimetric Properties of
tions prior to use.
Fluorescent Retroreflective Sheeting and Marking Mate-
rials for High Visibility Traffic Control and Personal
2. Referenced Documents
Safety Applications Using 45°:Normal Geometry
2
2.1 ASTM Standards:
G7Practice for Atmospheric Environmental Exposure Test-
B209Specification for Aluminum and Aluminum-Alloy
ing of Nonmetallic Materials
Sheet and Plate
G113Terminology Relating to Natural andArtificialWeath-
B209MSpecification for Aluminum and Aluminum-Alloy
ering Tests of Nonmetallic Materials
Sheet and Plate (Metric)
G147Practice for Conditioning and Handling of Nonmetal-
B449Specification for Chromates on Aluminum
lic Materials for Natural and Artificial Weathering Tests
E284Terminology of Appearance
G151PracticeforExposingNonmetallicMaterialsinAccel-
E308PracticeforComputingtheColorsofObjectsbyUsing
erated Test Devices that Use Laboratory Light Sources
the CIE System
G155Practice for Operating XenonArc LightApparatus for
E808Practice for Describing Retroreflection
Exposure of Non-Metallic Materials
E810Test Method for Coefficient of Retroreflection of
Retroreflective Sheeting Utilizing the Coplanar Geometry
2.2 Other Standards
E811Practice for Measuring Colorimetric Characteristics of
ISO4892-2:2006PlasticsMethodsofexposuretolaboratory
Retroreflectors Under Nighttime Conditions
light sources - Part 2: Xenon-arc lamps
ISO 4892-2:2006/Amd.1:2009 Plastics Methods of expo-
sure to laboratory light sources - Part 2: Xenon-arc lamps
1
This specification is under the jurisdiction ofASTM Committee D04 on Road
EN12899-1:2007 Fixed, vertical road traffic signs - Part 1:
and Paving Materials and is the direct responsibility of Subcommittee D04.38 on
Highway Traffic Control Materials. Fixed signs
Current edition approved Dec. 15, 2013. Published January 2014. Originally
approved in 1989. Last previous edition approved in 2011 as D4956–11a. DOI:
3. Terminology
10.1520/D4956-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1 Definitions—Definitions of terms are as described in
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Terminology E284, Practice E808, and Terminology G113.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 3.2 Definitions of Terms Specific to This Standard:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4956−13
3.2.1 reboundable sheeting, n—retroreflective material in- retroreflectivematerial.Applicationsincludeorangetemporary
tended to be attached to flexible impact resistant plastic roll-up warning signs, traffic cone collars, and post bands.
devices, such as traffic drum-like channelizing devices.
4.2.
...
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: D4956 − 11a D4956 − 13
Standard Specification for
1
Retroreflective Sheeting for Traffic Control
This standard is issued under the fixed designation D4956; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
Balloted and approved material consistent with previous versions has been included editorially, and the year date was changed on
March 30, 2011.
1. 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 standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
B209M Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)
B449 Specification for Chromates on Aluminum
E284 Terminology of Appearance
E308 Practice for Computing the Colors of Objects by Using the CIE System
E808 Practice for Describing Retroreflection
E810 Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry
E811 Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions
E991 Practice for Color Measurement of Fluorescent Specimens Using the One-Monochromator Method
E1164 Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E1247 Practice for Detecting Fluorescence in Object-Color Specimens by Spectrophotometry
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
E2152 Practice for Computing the Colors of Fluorescent Objects from Bispectral Photometric Data
E2153 Practice for Obtaining Bispectral Photometric Data for Evaluation of Fluorescent Color
E2301 Test Method for Daytime Colorimetric Properties of Fluorescent Retroreflective Sheeting and Marking Materials for High
Visibility Traffic Control and Personal Safety Applications Using 45°:Normal Geometry
G7 Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials
G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G147 Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
1
This specification is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.38 on Highway
Traffic Control Materials.
Current edition approved March 30, 2011Dec. 15, 2013. Published March 2011January 2014. Originally approved in 1989. Last previous edition approved in 2011 as
D4956 – 11.D4956 – 11a. DOI: 10.1520/D4956-11A.10.1520/D4956-13.
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 ----------------------
D4956 − 13
2.2 Other Standards
ISO 4892-2:2006 Plastics Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps
ISO 4892-2:2006/Amd.1:2009 Plastics Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps
EN128
...
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