ASTM C 217 : 1994 : R1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Weather Resistance of Slate
Hardcopy , PDF
11-11-2014
English
10-04-1999
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL 04.07, 2005 Describes two procedures for weather resistance of slate in all outdoor installations by determining the depth of softening by an abraser or by hand scraping.
| Committee |
C 18
|
| DocumentType |
Test Method
|
| Pages |
3
|
| ProductNote |
Reconfirmed 1999
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy |
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 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 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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