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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Publication Date
31-Jul-2009
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D4956 – 09
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.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 Department of Defense.
1. Scope E991 PracticeforColorMeasurementofFluorescentSpeci-
mens Using the One-Monochromator Method
1.1 This specification covers flexible, non-exposed glass
E1164 Practice for Obtaining Spectrometric Data for
beadlensandmicroprismatic,retroreflectivesheetingdesigned
Object-Color Evaluation
for use on traffic control signs, delineators, barricades, and
E1247 Practice for Detecting Fluorescence in Object-Color
other devices.
Specimens by Spectrophotometry
1.2 The values stated in inch-pound units are to be regarded
E1347 Test 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
E1349 Test 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
E2152 Practice 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
E2153 Practice 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-
E2301 Test Method for Daytime Colorimetric Properties of
tions prior to use.
Fluorescent Retroreflective Sheeting and Marking Materi-
2. Referenced Documents als for High Visibility Traffic Control and Personal Safety
2
Applications Using 45°:Normal Geometry
2.1 ASTM Standards:
G7 PracticeforAtmosphericEnvironmentalExposureTest-
B209 Specification for Aluminum and Aluminum-Alloy
ing of Nonmetallic Materials
Sheet and Plate
G147 PracticeforConditioningandHandlingofNonmetal-
B209M Specification for Aluminum and Aluminum-Alloy
lic Materials for Natural and Artificial Weathering Tests
Sheet and Plate (Metric)
G151 Practice for Exposing Nonmetallic Materials in Ac-
B449 Specification for Chromates on Aluminum
celerated Test Devices that Use Laboratory Light Sources
E284 Terminology of Appearance
G152 Practice for Operating Open Flame CarbonArc Light
E308 Practice for Computing the Colors of Objects by
Apparatus for Exposure of Nonmetallic Materials
Using the CIE System
E808 Practice for Describing Retroreflection
3. Terminology
E810 Test Method for Coefficient of Retroreflection of
3.1 Definitions—Definitions of terms are as described in
Retroreflective Sheeting Utilizing the Coplanar Geometry
Terminology E284 and Practice E808.
E811 Practice for Measuring Colorimetric Characteristics
3.2 Definitions of Terms Specific to This Standard:
of Retroreflectors Under Nighttime Conditions
3.2.1 reboundable sheeting, n—retroreflective material in-
tended to be attached to flexible impact resistant plastic
1
This specification is under the jurisdiction ofASTM Committee D04 on Road
devices, such as traffic drum-like channelizing devices.
and Paving Materials and is the direct responsibility of Subcommittee D04.38 on
Highway Traffic Control Materials.
4. Classification
Current edition approved Aug. 1, 2009. Published August 2009. Originally
´1
approved in 1989. Last previous edition approved in 2007 as D4956–07 . DOI:
4.1 Retroreflective sheeting shall consist of a white or
10.1520/D4956-09.
colored sheeting having a smooth outer surface and that
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
essentially has the property of a retroreflector over its entire
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
surface. There are nine types and five classes of retroreflective
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 – 09
sheeting. Types are determined by conformance to the retrore- flectiveelementmaterial.Applicationsforthismaterialinclude
flectance, color, and durability requirements listed in 6.1 and permanent highway signing, construction zone devices,
...

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:D4956–07 Designation: D 4956 – 09
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.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 Department of Defense.
1
´ NOTE—Editorial changes made to Section 6.12 in April 2007.
1. Scope
1.1 Thisspecificationcoversflexible,non-exposedglassbeadlensandmicroprismatic,retroreflectivesheetingdesignedforuse
on traffic control signs, delineators, barricades, and other devices.
1.2The values stated in inch-pound units are to be regarded as the standard.The values given in parentheses are for information
only.
1.3
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 Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section7,ofthisspecification. 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 D523Test Method for Specular Gloss
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
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
G152 Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD04onRoadandPavingMaterialsandisthedirectresponsibilityofSubcommitteeD04.38onHighway
Traffic Control Materials.
Current edition approved March 15, 2007. Published March 2007. Originally approved in 1989. Last previous edition approved in 2005 as D4956–05.
´1
Current edition approved Aug. 1, 2009. Published August 2009. Originally approved in 1989. Last previous edition approved in 2007 as D4956–07 .
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 ----------------------
D4956–09
3. Terminology
3.1 Definitions—Definitions of terms are as described in Terminology E284 and Practice E808.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 reboundable sheeting, n—retroreflective material intended to be attac
...

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:D4956–07 Designation: D 4956 – 09
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.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 Department of Defense.
1
´ NOTE—Editorial changes made to Section 6.12 in April 2007.
1. Scope
1.1 Thisspecificationcoversflexible,non-exposedglassbeadlensandmicroprismatic,retroreflectivesheetingdesignedforuse
on traffic control signs, delineators, barricades, and other devices.
1.2The values stated in inch-pound units are to be regarded as the standard.The values given in parentheses are for information
only.
1.3
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 Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section7,ofthisspecification. 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 D523Test Method for Specular Gloss
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
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
G152 Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD04onRoadandPavingMaterialsandisthedirectresponsibilityofSubcommitteeD04.38onHighway
Traffic Control Materials.
Current edition approved March 15, 2007. Published March 2007. Originally approved in 1989. Last previous edition approved in 2005 as D4956–05.
´1
Current edition approved Aug. 1, 2009. Published August 2009. Originally approved in 1989. Last previous edition approved in 2007 as D4956–07 .
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 ----------------------
D4956–09
3. Terminology
3.1 Definitions—Definitions of terms are as described in Terminology E284 and Practice E808.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 reboundable sheeting, n—retroreflective material intended to be attac
...

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