Standards / Research Reports
Research Report RR:D04-1026An interlaboratory study was conducted by six laboratories to establish a precision statement for the test method, coefficient of luminous intensity, in standard specification D4280.
D4280-12 Standard Specification for Extended Life Type, Nonplowable, Raised Retroreflective Pavement Markers
Committee D04 on Road and Paving Materials
Subcommittee D04.38 on Highway Traffic Control Materials