ASTM C97-02

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C 97 – 02
Standard Test Methods for
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Absorption and Bulk Specific Gravity of Dimension Stone
ThisstandardisissuedunderthefixeddesignationC 97;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) 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 to be tested. The sample may be selected by the purchaser or
his authorized representative from the quarried stone or taken
1.1 These test methods cover the tests for determining the
from the natural ledge and shall be of adequate size to permit
absorption and bulk specific gravity of all types of dimension
the preparation of at least five test specimens. When percep-
stone, except slate.
tible variations occur, the purchaser may select as many
1.2 Units—The values stated in either SI units or inch-
samples as are necessary for determining the range in proper-
pound units are to be regarded separately as standard. The
ties.
values stated in each system may not be exact equivalents;
therefore each system shall be used independently of the other.
6. Test Specimens
Combining values from the two systems may result in non-
6.1 The specimens may be cubes, prisms, cylinders, or any
conformance with the standard.
regular form with least dimension not under 50 mm (2 in.) and
1.3 This standard does not purport to address the safety
greatest dimension not over 75 mm (3 in.) but the ratio of
concerns, if any, associated with its use. It is the responsibility
volume to surface area shall not be less than 8 nor greater than
of the user of this standard to establish appropriate safety and
12.5 when measuring in millimetres (0.3 and 0.5 when mea-
health practices and determine the applicability of regulatory
suring in inches).All surfaces shall be reasonably smooth. Saw
limitations prior to use.
or core drill surfaces are considered satisfactory, but rougher
2. Referenced Documents surfaces shall be finished with No. 80 abrasive. No chisels or
similar tools shall be used at any stage of preparing the
2.1 ASTM Standards:
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specimens.
C 119 Terminology Relating to Dimension Stone
6.2 Prepare at least five specimens from each sample.
3. Terminology
6.3 The same specimens may be used to determine both
water absorption and bulk specific gravity. In this case, follow
3.1 Definitions—All definitions are in accordance with Ter-
the procedures in 7.1-7.3 and 10.1, and issue a single report
minology C 119.
containing all information required in 9 and 13. Alternatively,
4. Significance and Use
separate specimens may be prepared from the same or different
samples. In this case, follow the applicable procedure for
4.1 These test methods are useful in indicating the differ-
separate determination and reporting of water absorption or
ences in absorption between the various dimension stones.
bulk specific gravity, or both.
These test methods also provide one element in comparing
stones of the same type.
7. Procedure
5. Sampling
7.1 Dry the specimens for 48 h in a ventilated oven at a
temperature of 60 6 2°C (140 6 4°F). At the 46th, 47th, and
5.1 The sample shall be selected to represent a true average
48th hour, weigh the specimens to ensure that the weight is the
of the type or grade of stone under consideration and shall be
same. If the weight continues to drop, continue to dry the
of the quality supplied to the market under the type designation
specimens until there are three successive hourly readings with
the same weight.
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These test methods are under the jurisdiction of ASTM Committee C18 on
7.2 After drying, cool the specimens in the room for 30 min
Dimension Stone and are the direct responsibility of Subcommittee C18.01 on Test
and weigh. When the specimens cannot be weighed immedi-
Methods.
ately after cooling, store them in a desiccator. Determine the
Current edition approved April 10, 2002. Published July 2002. Originally
published as C 97 – 30. Last previous edition C 97 – 96.
weights to the nearest 0.01 g (0.0005 oz).
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Annual Book of ASTM Standards, Vol 04.07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C97
7.3 Immerse the specimens completely in filtered or dis-
tilled water at 22 6 2°C (72 6 4°F) for 48 h.At the end of this
period remove them from the water bath one at a time, surface
dry with a damp cloth, and weigh to the nearest 0.01 g (0.0005
oz).
8. Calculation and Report
8.1 Calculate the weight percentage absorption (Note 1) for
each specimen as follows:
Absorption, weight % 5 @~B 2 A!/A# 3 100 (1)
where:
A =
...