Standard Test Method for Aggregate Layer Hiding Power
Standard Test Method for Aggregate Layer Hiding PowerD5081-90R05ASTM|D5081-90R05|en-USStandard Test Method for Aggregate Layer Hiding PowerStandardD5081 Standard Test Method for Aggregate Layer Hiding Power>newBOS Vol. 04.04 Committee D08
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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.
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 D 448, may be tested.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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