ASTM C217/C217M - 20 - Standard Test Method for Weather Resistance of Slate

ASTM C217/C217M - 20

Standard Test Method for Weather Resistance of Slate

Status : Current   Published : May 2020

Format
PDF

Format
HARDCOPY



1.1 This test method covers two procedures for weather resistance of slate in all outdoor installations by determining the depth of softening by a shear/scratch tester or by hand scraping after soaking in 1 % sulfuric acid.

Note 1: The 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 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 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.




Standard NumberASTM C217/C217M - 20
TitleStandard Test Method for Weather Resistance of Slate
StatusCurrent
Publication Date15 May 2020
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors dimension stone, durability, slate, stone, test, weather resistance
ICS91.100.15
PublisherASTM
FormatA4
DeliveryYes
Pages6
File Size198 KB
Price£40.00


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