ASTM C121/C121M-09
(Test Method)Standard Test Method for Water Absorption of Slate
Standard Test Method for Water Absorption of Slate
SIGNIFICANCE AND USE
This test method is useful in indicating the differences in water absorption of slates. This test method also provides one element in the comparison of slates.
SCOPE
1.1 This test method covers the determination of the water absorption of slate.
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 the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:C121/C121M–09
Standard Test Method for
1
Water Absorption of Slate
This standard is issued under the fixed designation C121/C121M; 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.
INTRODUCTION
Itisoftendesirabletogainsomeideaoftheporosityofamaterialinquestion.Actualdeterminations
of the pore space require the use of rather elaborate and refined equipment as well as considerable
precision in carrying out the tests. For comparative purposes the absorption test affords a simple and
sufficiently accurate means of obtaining the desired information. As applied to slate this test requires
somewhat more care and precision than many other materials because of its dense nature and,
consequently, the small quantities to be dealt with. Furthermore, the cleavage of slate—that property
which permits it to be split into thin sheets of uniform thickness—must be taken into consideration
when this test is made. On this account misleading results are often obtained on cubical specimens due
to accidental cleavage cracks in the specimens. The shapes of specimens and larger number of
specimens recommended in the following procedure are intended to eliminate to a large extent the
inconsistent results which may be obtained on this material.
1. Scope 3. Terminology
1.1 This test method covers the determination of the water 3.1 Definitions—All definitions are in accordance with Ter-
absorption of slate. minology C119.
1.2 Units—The values stated in either SI units or inch-
4. Significance and Use
pound units are to be regarded separately as standard. The
values stated in each system may not be exact equivalents; 4.1 This test method is useful in indicating the differences in
water absorption of slates. This test method also provides one
therefore, each system shall be used independently of the other.
Combining values from the two systems may result in non- element in the comparison of slates.
conformance with the standard.
5. Test Specimens
1.3 This standard does not purport to address the safety
5.1 The test specimens shall consist of square or rectangular
concerns, if any, associated with its use. It is the responsibility
3 5
slabs from ⁄16 to ⁄16 in. [5 to 8 mm] in thickness and not less
of the user of this standard to consult and establish appropriate
than 4 in. [100 mm] on any side.
safety and health practices and determine the applicability of
5.2 Not less than six specimens shall be prepared from each
regulatory limitations prior to use.
sample of slate, the sample being considered as any number of
2. Referenced Documents
pieces selected to represent a definite part or grade of the
2
deposit.
2.1 ASTM Standards:
C119 Terminology Relating to Dimension Stone
6. Sampling
6.1 Select the sample to represent a true average of the type
1
This test method is under the jurisdiction of ASTM Committee C18 on
or grade of stone under consideration and of the quality
Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test
supplied to the market under the type designation to be tested.
Methods.
Current edition approved April 1, 2009. Published April 2009. Originally
The sample may be selected by the purchaser or his authorized
approved in 1925 as C121–25T. Last previous edition approved in 2006 as
representativefromthequarriedstoneortakenfromthenatural
C121–06. DOI: 10.1520/C0121_C0121M-09.
2 ledge and shall be of adequate size to permit the preparation of
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the desired number of test specimens. When perceptible
contact ASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C121/C121M–09
variations occur, the purchaser may select as many samples as 8. In such cases, the 48 h immersion period may be supplanted
are necessary for determining the variations in water absorp- by an 8 h boiling period (Note 2). In this alternative method the
tion of slate.
operationsshallbethesameasdescribedinSection8uptothat
of immersion. Instead of allowing the specimens to soak for 48
7. Preparation of Specimens
h place them in an enameled pan or other suitable vessel, cover
7.1 Split the slate to the required thickness and saw to size.
with water, and boil for 8 h. Before the final weighing, c
...
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:C121–06 Designation:C121/C121M–09
Standard Test Method for
1
Water Absorption of Slate
This standard is issued under the fixed designation C 121/C 121M; 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.
INTRODUCTION
Itisoftendesirabletogainsomeideaoftheporosityofamaterialinquestion.Actualdeterminations
of the pore space require the use of rather elaborate and refined equipment as well as considerable
precision in carrying out the tests. For comparative purposes the absorption test affords a simple and
sufficiently accurate means of obtaining the desired information. As applied to slate this test requires
somewhat more care and precision than many other materials because of its dense nature and,
consequently, the small quantities to be dealt with. Furthermore, the cleavage of slate—that property
which permits it to be split into thin sheets of uniform thickness—must be taken into consideration
when this test is made. On this account misleading results are often obtained on cubical specimens due
to accidental cleavage cracks in the specimens. The shapes of specimens and larger number of
specimens recommended in the following procedure are intended to eliminate to a large extent the
inconsistent results which may be obtained on this material.
1. Scope
1.1 This test method covers the determination of the water absorption of slate.
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 the safety concerns, if any, associated with its use. It is the responsibility of the
user of this standard to consult and 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 water absorption of slates. This test method also provides one
element in the comparison of slates.
5. Test Specimens
3 5
5.1 The test specimens shall consist of square or rectangular slabs from ⁄16 to ⁄16 in. (4.8[5 to 7.9 mm)8 mm] in thickness and
not less than 4 in. (101.6 mm)[100 mm] on any side.
5.2 Not less than six specimens shall be prepared from each sample of slate, the sample being considered as any number of
pieces selected to represent a definite part or grade of the deposit.
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 Feb.April 1, 2006.2009. Published February 2006.April 2009. Originally approved in 1925 as C 121–25T. Last previous edition approved in
19992006 as C121–90(1999). C 121–06.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C121/C121M–09
6. Sampling
6.1 Select the sample to represent a true average of the type or grade of stone under consideration and of the quality supplied
to the market under the type designation to be tested.The sample may be selected by the purchaser or his authorized representative
fromthequarriedstoneortakenfromthenaturalledgeandshallbeofadequatesizetopermitthepreparationofthedesirednumber
of test specimens. When perceptible variations occur, the purchaser may select as many samples as are necessary for determining
the variations in water absorption of slate.
7. Preparation of Specimens
7.1 Split the slate to the required thickness and saw to size. When the specimens are prepared from shingles no saw
...
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