ASTM C499-78(1999)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: C 499 – 78 (Reapproved 1999)
Standard Test Method for
Facial Dimensions and Thickness of Flat, Rectangular
Ceramic Wall and Floor Tile
This standard is issued under the fixed designation C 499; 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 indicator is used, suitable jigs for holding the tile and the
indicator shall be provided.
1.1 This test method covers the determination of the facial
dimensions and thickness of flat, rectangular ceramic wall and
6. Test Specimens
floor tile. This test method covers tile as defined in Terminol-
6.1 Select tile specimens at random from the lot to be tested.
ogy C 242.
2 2
For tile smaller than 6 in. (38.7 cm ) in facial area, use at least
1.2 This standard does not purport to address all of the
ten specimens for each test; for tile 6 in. or larger in facial
safety concerns, if any, associated with its use. It is the
area, use at least five specimens for each test. The same
responsibility of the user of this standard to establish appro-
specimens may be used for the determination of facial dimen-
priate safety and health practices and determine the applica-
sions and thickness. Brush the specimens to remove all
bility of regulatory limitations prior to use.
adhering particles of clay or sand.
2. Referenced Documents
7. Procedure
2.1 ASTM Standards:
7.1 Major Facial Dimension—Measure the length of the tile
C 242 Terminology of Ceramic Whitewares and Related
to the nearest 0.001 in. (0.025 mm) across two pairs of opposite
Products
lugs. Follow the same procedure for measuring the width of the
3. Terminology tile. For tile whose lugs are not arranged opposite each other,
it may be necessary to use a jig to obtain the major facial
3.1 Definitions of Terms Specific to This Standard:
dimensions. For square tile, average all four measurements and
3.1.1 major facial dimension—the overall length or width
call the result the average major dimension. For oblong tile,
of the tile, including the lugs on opposite sides.
average the two length measurements and call the result the
3.1.2 major thickness—the thickness of tile, including any
average major length of the tile; average the two width
maximum protuberances or ridges on the back.
measurements and call the result the average major width of
3.1.3 minor facial dimension—the length or width of the tile
the tile.
exclusive of the lugs.
7.2 Minor Facial Dimension—Measure the length of the tile
3.1.4 minor thickness—the thickness of tile that does not
exclusive of the lugs to the nearest 0.001 in. (0.025 mm) in two
include maximum protuberances or ridges.
places. Follow the same procedure for measuring the width
4. Significance and Use
exclusive of the lugs. Points of measurement shall be at least
0.25 in. (6.4 mm) and not more than 0.50 in. (12.7 mm) from
4.1 This test method provides a means of determining
the corners of the tile. For tile with tapered sides, a jig is
whether a lot of tile meets specifications of variations in size
required to determine the minor facial dimension of such tile.
and thickness. In specifications, the nominal size always refers
For square tile, average all four measurements and call the
to the minor facial dimension and the nominal thickness of a
result the average minor dimension. For oblong tile, average
tile always refers to the major thickness.
the two length measurements and call the result the average
5. Apparatus
minor length; average the two width measurements and call the
result the average minor width.
5.1 A suitable measuring device such as a micrometer or
7.3 Major Thickness—Measure the major thickness to the
dial indicator, reading in
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