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ASTM D4956-19

Standard Specification for Retroreflective Sheeting for Traffic Control

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NORM herausgegeben am 1.7.2019

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Informationen über die Norm:

Bezeichnung normen: ASTM D4956-19
Ausgabedatum normen: 1.7.2019
SKU: NS-953540
Zahl der Seiten: 15
Gewicht ca.: 45 g (0.10 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM

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Kategorie - ähnliche Normen:

Road equipment and installations

Die Annotation des Normtextes ASTM D4956-19 :

Keywords:
barricades, delineators, highway signing, reboundable sheeting, retroreflective sheeting, traffic control,, ICS Number Code 93.080.30 (Road equipment and installations)

Ergänzende Informationen

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. This specification does not address inks, overlays, or other imaging methods that may be applied to retroreflective sheeting material to create traffic signs or other devices.

1.2 Although this specification provides photometric requirements for retroreflective sheeting under evaluation, minimum performance requirements of in-service signs or other devices are outside the scope of this document.

1.3 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.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

B449-93(2022)	Standard Specification for Chromates on Aluminum
E1349-06(2022)	Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45?:0? or 0?:45?) Geometry
B209-14	Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
B209M-14	Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric) (Withdrawn 2021)
E1347-06(2020)	Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E1247-12(2023)	Standard Practice for Detecting Fluorescence in Object-Color Specimens by Spectrophotometry
E1164-23	Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E991-21	Standard Practice for Color Measurement of Fluorescent Specimens Using the One-Monochromator Method
E811-09(2020)e1	Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions (Includes all amendments and changes 7/10/2020).
E810-20	Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry
E808-23	Standard Practice for Describing Retroreflection
E308-22	Standard Practice for Computing the Colors of Objects by Using the CIE System
E284-22	Standard Terminology of Appearance
D2794-93(2024)	Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

ISO 4892-2:2006/Amd.1:2009 Plastics
	Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps
G155-21	Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials
E2152-12(2023)	Standard Practice for Computing the Colors of Fluorescent Objects from Bispectral Photometric Data
E2153-01(2023)	Standard Practice for Obtaining Bispectral Photometric Data for Evaluation of Fluorescent Color
E2301-12(2022)	Standard 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
G7-05	Standard Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials
G113-22	Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G147-17	Standard Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
G151-19	Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources

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