ASTM E811 - 09(2015) - Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions

ASTM E811 - 09(2015)

Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions

Status : Current   Published : July 2015

Format
PDF

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HARDCOPY



1.1 This 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.

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

1.3 The 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.

1.4  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.




Standard NumberASTM E811 - 09(2015)
TitleStandard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions
StatusCurrent
Publication Date01 July 2015
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Chromaticity, Retroreflector
ICS93.080.30
PublisherASTM
FormatA4
DeliveryYes
Pages8
File Size138 KB
Price£40.00


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