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ASTM C459/C459M-97(2019)

ASTM C459/C459M-97(2019)

Standard Test Methods for Asbestos-Cement Flat Products

2019-05-01 /Active

This test method covers asbestos-cement flat sheets, roofing shingles, siding shingles, and clapboards. Each test specimen should be cut to specification without cracks and damage. This test method details the significance and use of routine test procedures for flexural strength, deflection, water absorption, and dimensions.


1.1 These test methods cover only asbestos-cement flat sheets, roofing shingles, siding shingles, and clapboards.

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 Warning—Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to “Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures.”2

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific safety hazard, see 1.3.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

asbestos; asbestos-cement; clapboards; flat sheets; sheeting; shingles; siding; siding shingles;
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