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Description of ASTM-C217 2009ASTM C217 / C217M - 09Standard Test Method for Weather Resistance of SlateActive Standard ASTM C217 / C217M | Developed by Subcommittee: C18.01 Book of Standards Volume: 04.07 ASTM C217 / C217MSignificance and Use This test method is useful in indicating the differences in weather resistance between various slates. This test method also provides one element in the comparison of slates. 1. Scope 1.1 This test method covers two procedures for weather resistance of slate in all outdoor installations by determining the depth of softening by an abraser or by hand scraping. Note 1The test is based on the fact that slates containing pyrite, calcite, and carbon undergo a chemical weathering which results in the conversion of the calcite particles to gypsum. The swelling action that results causes disintegration of the slate. The extent of this action on various slates in the test has been found to correlate with the durability of the materials in actual weathering. 1.2 Units 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.
ASTM Standards C119 Terminology Relating to Dimension Stone Keywords dimension stone; durability; slate; stone; test; weather resistance; Acid resistance; Dimension stone; Slate; Weathering (building materials/applications); ICS Code ICS Number Code 91.100.15 (Mineral materials and products) DOI: 10.1520/C0217_C0217M-09 ASTM International is a member of CrossRef. ASTM C217 / C217MThe following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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