ASTM D4280 – Standard Specification for Extended Life Type, Nonplowable, Raised Retroreflective Pavement Markers
Description:
Abstract
This specification covers extended life type, nonplowable, retroreflective raised pavement markers for nighttime lane marking and delineation. Pavement markers shall undergo tests to examine their conformance with specified construction, performance (retroreflectivity), and physical property (flexural strength, compressive strength, abrasion resistance, coefficient of luminous intensity, color, resistance to lens cracking, lens impact strength, and temperature cycling strength) requirements.
Scope
1.1 This specification covers nonplowable, retroreflective raised pavement markers for nighttime lane marking and delineation.
1.2 The values stated in inch-pound units are to be regarded as the standard, except where noted in the document. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
ASTM D4274