1、Designation:C49909(Reapproved 2014)Standard Test Method forFacial Dimensions and Thickness of Flat,RectangularCeramic Wall and Floor Tile1This standard is issued under the fixed designation C499;the number immediately following the designation indicates the year oforiginal adoption or,in the case of
2、 revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This test method
3、 covers the determination of the facialdimensions and thickness of flat,rectangular ceramic wall andfloor tile.This test method covers tile as defined in Terminol-ogy C242.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversi
4、ons to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and
5、determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C242 Terminology of Ceramic Whitewares and RelatedProducts3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 major facial dimensionthe overall length or width ofthe tile,i
6、ncluding the lugs on opposite sides.3.1.2 major thicknessthe thickness of tile,including anymaximum protuberances or ridges on the back.3.1.3 minor facial dimensionthe length or width of the tileexclusive of the lugs.3.1.4 minor thicknessthe thickness of tile that does notinclude maximum protuberanc
7、es or ridges.4.Significance and Use4.1 This test method provides a means of determiningwhether a lot of tile meets specifications of variations in sizeand thickness.In specifications,the nominal size always refersto the minor facial dimension and the nominal thickness of atile always refers to the m
8、ajor thickness.5.Apparatus5.1 A suitable measuring device such as a micrometer ordial indicator,reading in 0.001-in.(0.025-mm)divisions andaccurate to 60.001 in.(60.025 mm),shall be used.If a dialindicator is used,suitable jigs for holding the tile and theindicator shall be provided.6.Test Specimens
9、6.1 At least ten tile specimens shall be selected at randomfrom the lot to be tested.The same specimens may be used forthe determination of facial dimensions and thickness.Brush thespecimens to remove all adhering particles of clay or sand.7.Procedure7.1 Major Facial DimensionMeasure the length of t
10、he tileto the nearest 0.001 in.(0.025 mm)across two pairs of oppositelugs.Follow the same procedure for measuring the width of thetile.For tile whose lugs are not arranged opposite each other,it may be necessary to use a jig to obtain the major facialdimensions.For square tile,average all four measu
11、rements andcall the result the average major dimension.For oblong tile,average the two length measurements and call the result theaverage major length of the tile;average the two widthmeasurements and call the result the average major width ofthe tile.7.2 Minor Facial DimensionMeasure the length of
12、the tileexclusive of the lugs to the nearest 0.001 in.(0.025 mm)in twoplaces.Follow the same procedure for measuring the widthexclusive of the lugs.Points of measurement shall be at least0.25 in.(6.4 mm)and not more than 0.50 in.(12.7 mm)fromthe corners of the tile.For tile with tapered sides,a jig
13、isrequired to determine the minor facial dimension of such tile.For square tile,average all four measurements and call the1This test method is under the jurisdiction ofASTM Committee C21 on CeramicWhitewares and Related Productsand is the direct responsibility of SubcommitteeC21.06 on Ceramic Tile.C
14、urrent edition approved Dec.1,2014.Published December 2014.Originallyapproved in 1962.Last previous edition approved in 2009 as C499 09.DOI:10.1520/C0499-09R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AST
15、MStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 result the average minor dimension.For oblong tile,averagethe two length measurements and call t
16、he result the averageminor length;average the two width measurements and call theresult the average minor width.7.3 Major ThicknessMeasure the major thickness to thenearest 0.001 in.(0.025 mm)at each of the four corners of thetile including any protuberances or ridges on the back of thetile.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 thetile.Average the four readings and call the result the averagemajor thickness.7.4 Minor Thickn