ASTM C499-09(R2019) pdf free download

ASTM C499-09(R2019) pdf free download.Standard Test Method for Facial Dimensions and Thickness of Flat, Rectangular Ceramic Wall and Floor Tile
1. Scope
1.1 This test method covers the determination of the facial dimensions and thickness of flat, rectangular ceramic wall and floor tile. This test method covers tile as defined in Terminol- ogy C242. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Terminology
3.1 Definitions ofTerms Specific to This Standard: 3.1.1 major facial dimension—the overall length or width of the tile, including the lugs on opposite sides. 3.1.2 major thickness—the thickness of tile, including any maximum protuberances or ridges on the back. 3.1.3 minor facial dimension—the length or width ofthe tile exclusive of the lugs. 3.1.4 minor thickness—the thickness of tile that does not include maximum protuberances or ridges.
4. Significance and Use
4.1 This test method provides a means of determining whether a lot of tile meets specifications of variations in size and thickness. In specifications, the nominal size always refers to the minor facial dimension and the nominal thickness of a tile always refers to the major thickness.
5. Apparatus
5.1 A suitable measuring device such as a micrometer or dial indicator, reading in 0.001-in. (0.025-mm) divisions and accurate to 60.001 in. (60.025 mm), shall be used. If a dial indicator is used, suitable jigs for holding the tile and the indicator shall be provided.
6. Test Specimens
6.1 At least ten tile specimens shall be selected at random from the lot to be tested. The same specimens may be used for the determination offacial dimensions and thickness. Brush the specimens to remove all adhering particles of clay or sand.
7. Procedure
7.1 Major Facial Dimension—Measure the length ofthe tile to the nearest 0.001 in. (0.025 mm) across two pairs ofopposite lugs. Follow the same procedure for measuring the width ofthe tile. For tile whose lugs are not arranged opposite each other, it may be necessary to use a jig to obtain the major facial dimensions. For square tile, average all four measurements and call the result the average major dimension. For oblong tile, average the two length measurements and call the result the average major length of the tile; average the two width measurements and call the result the average major width of the tile. 7.2 Minor Facial Dimension—Measure the length ofthe tile exclusive ofthe lugs to the nearest 0.001 in. (0.025 mm) in two places. Follow the same procedure for measuring the width 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 the corners of the tile. For tile with tapered sides, a jig is required to determine the minor facial dimension of such tile. For square tile, average all four measurements and call the result the average minor dimension. For oblong tile, average the two length measurements and call the result the average minor length; average the two width measurements and call the result the average minor width. 7.3 Major Thickness—Measure the major thickness to the nearest 0.001 in. (0.025 mm) at each of the four corners of the tile including any protuberances or ridges on the back of the tile. Points of measurement shall be at least 0.25 in. (6.4 mm) and not more than 0.75 in. (19.0 mm) in from the edge of the tile. Average the four readings and call the result the average major thickness.