ASTM D5081 / D5081M - 90(2011)e1

    Standard Test Method for Aggregate Layer Hiding Power

    Active Standard ASTM D5081 / D5081M | Developed by Subcommittee: D08.03

    Book of Standards Volume: 04.04


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    Significance and Use

    One of the functions of a roofing aggregate is to shield the roofing membrane from sunlight that may be destructive to the roofing membrane. This test method measures the quantity of gravel needed to exclude light under arbitrary laboratory conditions. This test method need not be performed if the roofing membrane is not affected by light exposure.

    1. Scope

    1.1 This test method measures the quantity of aggregate needed to provide an opaque layer under laboratory conditions. Aggregate size Numbers 1 through 8, as listed in Classification D448, may be tested.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.3 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. ^REFERENCE:

    ASTM Standards:

    C702 Practice for Reducing Samples of Aggregate to Testing Size

    D75 Practice for Sampling Aggregates

    D448 Classification for Sizes of Aggregate for Road and Bridge Construction

    D1079 Terminology Relating to Roofing and Waterproofing


    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

    C702 Practice for Reducing Samples of Aggregate to Testing Size

    D75 Practice for Sampling Aggregates

    D448 Classification for Sizes of Aggregate for Road and Bridge Construction

    D1079 Terminology Relating to Roofing and Waterproofing


    ICS Code

    ICS Number Code 87.060.10 (Pigments and extenders)

    UNSPSC Code

    UNSPSC Code 30111800(Aggregates); 30151500(Roofing materials)


    DOI: 10.1520/D5081_D5081M-90R11E01

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