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ASTM E 811 : 2009 : R2020 : EDT 1

Current
Current

The latest, up-to-date edition.

Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-01-2020

1.1This practice describes the instrumental determination of retroreflected chromaticity coordinates of retroreflectors. It includes the techniques used in a photometric range to measure retroreflected (nighttime) chromaticity with either a telecolorimeter or telespectroradiometer.

1.2This practice covers the general measurement procedures. Additional requirements for specific tests and specifications are described in Section 7.

1.3The description of the geometry used in the nighttime colorimetry of retroreflectors is described in Practice E808 and the methods for calculation of chromaticity are contained in Practice E308.

1.4This 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.

1.5This 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.

Committee
E 12
DocumentType
Standard Practice
Pages
8
ProductNote
e1 NOTE—Editorial changes were made in Sections 2, 3, and 5 in June 2020.
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 284 : 2022 Standard Terminology of Appearance
ASTM E 808 : 2023 Standard Practice for Describing Retroreflection
ASTM E 691 : 2020 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 808 : 2001 : R2016 Standard Practice for Describing Retroreflection
ASTM E 691 : 2019 : EDT 1 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2023 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 809 : 2008 : R2013 Standard Practice for Measuring Photometric Characteristics of Retroreflectors
ASTM E 691 : 2022 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2009 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2021 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 308 : 2018 Standard Practice for Computing the Colors of Objects by Using the CIE System
ASTM E 809 : 2021 Standard Practice for Measuring Photometric Characteristics of Retroreflectors
ASTM E 308 : 2022 Standard Practice for Computing the Colors of Objects by Using the CIE System
ASTM E 809 : 1994 : REV A : R2000 Standard Practice for Measuring Photometric Characteristics of Retroreflectors
ASTM E 284 : 2017 Standard Terminology of Appearance

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