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ASTM E2302-03

Historical Revision

Standard Test Method for Measurement of the Luminance Coefficient Under Diffuse Illumination of Pavement Marking Materials Using a Portable Reflectometer

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1.1 This test method covers measurement of the luminance coefficient under diffuse illumination of horizontal pavement markings, such as traffic stripes and surface symbols, and pavement surfaces, in a particular viewing direction using a portable reflectometer.

Note 1—The luminance coefficient under diffuse illumination is a measure of the reflection of horizontal pavement markings and pavement surfaces in a particular viewing direction in daylight or under road lighting. Diffuse illumination approximates daylight illumination from the overcast sky, and road lighting as an average of locations on the pavement surface.

1.2 The co-viewing angle of the reflectometer affects the readings. As specified by the European Committee for Standardization (CEN), the co-viewing angle shall be 2.29.

1.3 This test method is intended to be used for field measurement of pavement markings and pavement surfaces but may be used to measure the performance of materials on sample panels before placing the marking material in the field.

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.


SDO ASTM: ASTM International
Document Number E2302
Publication Date July 10, 2003
Language en - English
Page Count 7
Revision Level 03
Supercedes
Committee E12.10
Publish Date Document Id Type View
Dec. 1, 2003 E2302-03A Revision
July 10, 2003 E2302-03 Revision
Feb. 1, 2022 E2302-03AR22 Reaffirmation
Jan. 1, 2016 E2302-03AR16 Reaffirmation
Aug. 1, 2009 E2302-03AR09 Reaffirmation