ASTM C217/C217M-09
(Test Method)Standard Test Method for Weather Resistance of Slate
Standard Test Method for Weather Resistance of Slate
SIGNIFICANCE 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.
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 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 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C217/C217M − 09
StandardTest Method for
1
Weather Resistance of Slate
This standard is issued under the fixed designation C217/C217M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 5. Apparatus
1.1 This test method covers two procedures for weather 5.1 Either one of the following shall be used:
3
resistance of slate in all outdoor installations by determining 5.1.1 Shear/Scratch Tester, Taber Model 203 or 502, with
the depth of softening by an abraser or by hand scraping. the shear hardness tool, Model S-20, or its equivalent.
5.1.2 Hand Scraping Tool—The scraping tool shall be made
NOTE 1—The test is based on the fact that slates containing pyrite,
by grinding down the blade of a putty knife to a length of 3 in.
calcite, and carbon undergo a chemical weathering which results in the
3
[75 mm] and a width of ⁄4 in. [20 mm]. The end of the blade
conversion of the calcite particles to gypsum. The swelling action that
results causes disintegration of the slate. The extent of this action on
shall be ground to a plane surface perpendicular to the length
various slates in the test has been found to correlate with the durability of
of the tool to form a sharp edge with either side of the blade.
the materials in actual weathering.
These sharp edges will be referred to as the “cutting edges.”
1.2 Units—The values stated in either SI units or inch-
6. Sampling
pound units are to be regarded separately as standard. The
values stated in each system may not be exact equivalents;
6.1 The samples shall be selected by the purchaser or his
therefore, each system shall be used independently of the other.
authorized representative so as to be truly representative of the
Combining values from the two systems may result in non-
consignment under consideration. Six shingles of roofing from
conformance with the standard.
each carload or fraction thereof or similar quantities from other
1.3 This standard does not purport to address all of the
kinds of slate shall constitute a sample.
safety concerns, if any, associated with its use. It is the
NOTE 2—Six shingles 10 in. [250 mm] or more in length and of any
responsibility of the user of this standard to establish appro-
standard width are sufficient for this test and also for modulus of rupture
priate safety and health practices and determine the applica-
and absorption tests.
bility of regulatory limitations prior to use.
7. Test Specimens
2. Referenced Documents
7.1 Prepare at least three specimens, each 2 by 4 in. [50 by
2
2.1 ASTM Standards:
100 mm] measured along the cleavage faces, for determining
C119 Terminology Relating to Dimension Stone
the depth of softening in a 1 % solution of sulfuric acid. The 2
by 4 in. [50 by 100 mm] faces shall be ground smooth and
3. Terminology
finished with No. 80 abrasive. Specimens cut from sheared or
3.1 Definitions—All definitions are in accordance with Ter-
punched slate shall have no saw cut nearer than 1 in. [25 mm]
minology C119.
from the edges or nail holes.
4. Significance and Use
8. Procedure with Shear/Scratch Tester
4.1 Thistestmethodisusefulinindicatingthedifferencesin
8.1 In this procedure determine the depth of softening in
weather resistance between various slates. This test method
acid with the shear/scratch tester (described in 5.1.1). The test
also provides one element in the comparison of slates.
involves measuring the depth of a groove made by the shearing
tool in fresh specimens and also in the same specimens after
1
This test method is under the jurisdiction of ASTM Committee C18 on
soaking 7 days in 1 % sulfuric acid.
Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test
Methods.
Current edition approved April 1, 2009. Published April 2009. Originally
3
approved in 1948. Last previous edition approved in 2004 as C217–94(2004). DOI: The sole source of supply of the apparatus (as described in the 1962 Bulletin
10.1520/C0217_C0217M-09. 62203–502) known to the committee at this time is Taber Instrument Co., North
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Tonawanda, NY. If you are aware of alternative suppliers, please provide this
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM information to ASTM International Headquarters. Your comments will receive
1
Standards volume information, refer to the standard’s Document Summary page on careful consideration at a meeting of the responsible technical committee, which
the ASTM website. you m
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C217–94 (Reapproved 2004) Designation: C 217/C 217M – 09
Standard Test Method for
1
Weather Resistance of Slate
This standard is issued under the fixed designation C 217/C 217M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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 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 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C119 Terminology Relating to Dimension Stone
3. Terminology
3.1 Definitions—All definitions are in accordance with Terminology C 119.
4. Significance and Use
4.1 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.
5. Apparatus
5.1 Either one of the following shall be used:
3
5.1.1 Shear/Scratch Tester, Taber Model 203 or 502, with the shear hardness tool, Model S-20, or its equivalent.
5.1.2 Hand Scraping Tool—The scraping tool shall be made by grinding down the blade of a putty knife to a length of 3 in.
3
(76.2mm)[75mm]andawidthof ⁄4in.(19.05mm).[20mm].Theendofthebladeshallbegroundtoaplanesurfaceperpendicular
to the length of the tool to form a sharp edge with either side of the blade. These sharp edges will be referred to as the “cutting
edges.”
6. Sampling
6.1 The samples shall be selected by the purchaser or his authorized representative so as to be truly representative of the
consignment under consideration. Six shingles of roofing from each carload or fraction thereof or similar quantities from other
kinds of slate shall constitute a sample.
1
This test method is under the jurisdiction of ASTM Committee C18 on Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test Methods.
Current edition approved Oct. 1, 2004. Published November 2004. Originally published in 1948 as C217–48T. Last previous edition approved in 1999 as C217–94(1999).
Current edition approved April 1, 2009. Published April 2009. Originally approved in 1948. Last previous edition approved in 2004 as C 217–94(2004).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Described in the 1962 Bulletin 62203–502 of the Taber Instrument Co., North Tonawanda, NY.
3
The sole source of supply of the apparatus (as described in the 1962 Bulletin 62203–502) known to the committee at this time isTaber Instrument Co., NorthTonawanda,
NY. If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will receive careful consideration at a
meeting of the responsible technical committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C 217/C 217M – 09
NOTE 2—Six shingles 10 in. (254 mm)[250 mm] or more in length and of any standard width are sufficient for this test and also for modulus of rupture
an
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.