Research Report RR:E12-1004

    An interlaboratory study was conducted by ten laboratories testing ten samples to establish a precision statement for test method E2177.

    Published: June 2011

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    Related Standards

    E2177-19 Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (RL) of Pavement Markings in a Standard Condition of Wetness

    Committee E12 on Color and Appearance

    Subcommittee E12.10 on Retroreflection