ASTM E2302-03
Historical Standard: ASTM E2302-03 Standard Test Method for Measurement of the Luminance Coefficient Under Diffuse Illumination of Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Reflectometer
SUPERSEDED (see Active link, below)
ASTM E2302
1. Scope
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 1The 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E284 Terminology of Appearance
E809 Practice for Measuring Photometric Characteristics of Retroreflectors
Other Standard
CENEN1436 Road Marking Materials--Road Marking Performance for Road Users Available from European Committee for Standardization (CEN), 36 rue de Stassart, B-1050, Brussels, Belgium, http://www.cenorm.be.Keywords
pavement; pavement markings; portable reflectometers; reflection; CEN (Comite Europeen de Normalization); Diffuse illumination; Luminance; Pavement marking materials; Portable reflectometer; Reflectometer/reflectrometry;
ICS Code
ICS Number Code 93.080.20 (Road construction materials)
DOI: 10.1520/E2302-03
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