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Significance and Use
This test method is designed to aid those interested in the engineering properties of roofing and waterproofing sheet materials and membranes.
This test method enables a researcher to measure the relative flexibility of roofing and waterproofing sheet materials and membranes under standard conditions in the laboratory.
The data obtained from this test method will not permit prediction of the service life of a membrane. Membrane flexibility is important during application, and changes in flexibility are believed to be linked to the performance of roofing and waterproofing membranes, but the actual link between test data and performance is unknown and is dependent on the materials and exposure.
1.1 This test method measures the flexibility of roofing or waterproofing sheet materials or membranes by bending the test material over a block containing arcs of specific radii at a standard temperature.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1079 Terminology Relating to Roofing and Waterproofing
ICS Number Code 91.120.30 (Waterproofing)
UNSPSC Code 30151505(Roofing membranes)
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ASTM D5683 / D5683M-95(2011)e1, Standard Test Method for Flexibility of Roofing and Waterproofing Materials and Membranes, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top