ASTM C501-84(1996)
(Test Method)Standard Test Method for Relative Resistance to Wear of Unglazed Ceramic Tile by the Taber Abraser
Standard Test Method for Relative Resistance to Wear of Unglazed Ceramic Tile by the Taber Abraser
SCOPE
1.1 This test method covers the establishment of an abrasive wear index by determination of the loss of weight resulting from abrasion of unglazed ceramic tile. It is applicable to tile described in Definitions C 242.
1.2 The values stated in inch-pound units are to be regarded as 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
Standards Content (Sample)
Designation:C501–84 (Reapproved 1996)
Standard Test Method for
Relative Resistance to Wear of Unglazed Ceramic Tile by
the Taber Abraser
This standard is issued under the fixed designation C 501; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This test method covers the establishment of an abra- 3.1 Definitions:
sivewearindexbydeterminationofthelossofweightresulting 3.1.1 For definitions of terms used in this test method, see
from abrasion of unglazed ceramic tile. It is applicable to tile Terminology C 242.
described in Definitions C 242.
4. Summary of Test Method
1.2 The values stated in inch-pound units are to be regarded
4.1 Thistestmethodconsistsofmountingthetilespecimens
as the standard.
1.3 This standard does not purport to address all of the in suitable holders, attaching the mounted holders to the
spindle of the Taber Abraser, and subjecting the specimens to
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- a prescribed number of revolutions under abrasive wheels of
specified coarseness and under a definite applied load. From
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. the loss of weight due to abrasion, the abrasive wear index is
calculated by a given formula.
2. Referenced Documents
5. Apparatus
2.1 ASTM Standards:
5.1 Taber Abrading Machine, equipped with replaceable
C 242 Terminology of Ceramic Whitewares and Related
Products hard abrasive H-22 Calibrade wheels, which can be loaded by
weights.
2.2 Federal Specification:
SS-T–308b Tile, Floor, Wall, and Trim Units, Ceramic 5.2 Vacuum Pick-Up, to remove the abraded material while
the machine is in operation.
5.3 Revolution Counter.
5.4 Wheel Refacer.
This test method is under the jurisdiction of ASTM Committee C-21 on
5.5 Balance, having a sensitivity of 0.05 g.
Ceramic Whitewares and Related Products and is the direct responsibility of
Subcommittee C21.06 on Ceramic Tile.
6. Sampling
Current edition approved Dec. 28, 1984. Published February 1985. Originally
published as C 501 – 62. Last previous edition C 501 – 80.
6.1 Four tile specimens 4 in. (102 mm) square or larger, or
This test method is basically the same as the abrasion test given in Federal
if ceramic mosaic tile, sufficient tile for four specimen assem-
Specification SS-T-308b, except two minor changes have been made:
(1) The number of specimens required by the test is changed from three to four, blies 4 in. square shall constitute a sample and shall be chosen
so that the condition of the abrasive wheels used can be specified as new and once
fromthelottobetested.Onlytilethatshownovisiblewarpage
dressed. The diameters of wheels redressed more than once vary greatly and
when checked with a straightedge shall be used.
nonuniformly, introducing an unnecessary variation in test results.
(2) The bulk specific gravity of the tile tested has been eliminated from
7. Test Specimen
calculation of the wear index. The probable resulting maximum error of
7.1 The test specimen shall be 4 in. (102 mm) square and in
2 |n$ %inthewear-indexvalue,whenanaverageisassumed,doesnotjustify
one piece, if possible. If larger, it should be trimmed down to
the cumbersome determinations of bulk specific gravity of the specimen. Measure-
the desired size by removing equal amounts on opposite sides.
ments of bulk specific gravities of twenty different unglazed tile from eight different
In case of ceramic mosaic tile where several small units must
manufacturers, including quarry tile, porcelain tile, natural clay tile and conductive
be used to obtain a 4-in. square specimen assembly, the small
tile showed a range of bulk specific gravity from 2.34 to 2.47, except for that of
conductive tile which was as high as 2.98. The average of 2.40 was selected as a unitsshallbemountedsecurelyona4-in.squarerigidmaterial,
constant to be substituted for G in the SS-T-308b formula to obtain the formula in
such as a metal plate, by means of a suitable adhesive, and in
this test method. Therefore, to obtain the value 88, the constant of 36.75 in the
such a manner that open joints are eliminated and the tile
SS-T-308b test has been multipled by 2.40 to keep the wear indexes of both tests on
the same numerical scale.
Annual Book of ASTM Standards, Vol 15.02.
4 5
AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700 The Tabor Abraser and the Model 200 wheel refacer are available from
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. Teledyne Taber Instrument Corp., 17 Goundry St., North Tonawanda, NY 14150.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19
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