1、Designation:C146416Standard Specification forBent Glass1This standard is issued under the fixed designation C1464;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of
2、 last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the requirements for bent glassused in general building construction,furniture,display,andvarious other non-automotive applications.1.2 The dimensional valu
3、es,stated in SI units are to beregarded as the standard.The values given in parentheses areprovided for information only.1.3 The following safety hazards caveat pertains only to thetest method portion,Section 7,of this specification.Thisstandard does not purport to address all of the safety concerns
4、,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents22.1 ASTM Standards:3C162 Terminology of Glass and Glass ProductsC103
5、6 Specification for Flat GlassC1048 Specification for Heat-Strengthened and Fully Tem-pered Flat GlassC1172 Specification for Laminated Architectural Flat GlassC1376 Specification for Pyrolytic and Vacuum DepositionCoatings on Flat GlassC1422 Specification for Chemically Strengthened Flat Glass2.2 A
6、NSI StandardANSI Z-97.1 Safety Glazing Materials Used in BuildingsSafety Performance Specifications and Methods of Test2.3 Federal Document:4CPSC 16 CFR 1201 Consumer Product Safety CommissionSafety Standard for Architectural Glazing Material3.Terminology3.1 Definitions:3.1.1 Refer to Terminology C1
7、62,Specifications C1036,C1422,C1376,and C1172,as appropriate.3.1.2 Blemishes in Flat GlassRefer to SpecificationsC1036,C1048,C1422,C1376,and C1172,as appropriate.3.2 Definitions of Terms Specific to This Standard:3.2.1 bent glassflat glass that has been shaped while hotinto a body having curved surf
8、aces.3.2.2 chorda straight line segment that joins two points ofan arc.3.2.3 complex benda profile shape composed of curvaturenot easily defined by multiple radii that can result in a bentshape on one or more axis,typically defined by model or mold.3.2.4 compound benda profile shape composed of curv
9、a-ture of more than one radii,curved on two or more axes.3.2.5 crossbenddeviation from a straight edge along a lineperpendicular to the curvature measured on the concave side.3.2.6 cylindrical benda profile shape composed of asingle curvature with a constant radius and no straight sections,all curve
10、d on a single axis.3.2.7 degree of anglethe angular measurement of a seg-ment of a curve.3.2.8 depthon a circular bend,the distance from themidpoint of a chord to the arc measured along its radiusperpendicular to the circumference.3.2.9 elliptical benda curved profile shape composed oftwo or more ta
11、ngential radii on a single axis.3.2.10 girththe distance around the concave or convexsurface measured perpendicular to the height including anyflats.3.2.11 heightthe length measurement of the edge perpen-dicular to the horizontal arc or girth.3.2.12 multiple benda profile shape composed of a curva-t
12、ure of two or more radii,all curved on a single axis,with atleast two of the curvatures possibly separated by a flat(plane)area,and with or without one or more additional flat(plane)areas tangent to the curvatures.3.2.13 pock marksprocess surface blemishs that consist ofsmall,shallow areas,circular
13、in shape,on the surface of theglass.1This specification is under the jurisdiction of ASTM Committee C14 on Glassand Glass Products and is the direct responsibility of Subcommittee C14.08 on FlatGlass.Current edition approved May 1,2016.Published June 2016.Originallyapproved in 2000.Last previous edi
14、tion approved in 2006 as C1464 06(2011).DOI:10.1520/C1464-16.2Reference to these standards shall be the latest revision unless otherwisespecified by the authority applying this specification.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at service
15、astm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Available from the Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20402.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohoc
16、ken,PA 19428-2959.United States1 3.2.14 ring marksprocess surface blemishs that consist ofshallow marks typically running along the perimeter of theglass surface.3.2.15 rotationa condition where vertical edges(perpen-dicular to arc)are not parallel to bending axis.3.2.16 serpentine bendprofile shape composed of concaveand convex curvatures of one or more radii on a single axiswith or without flat areas tangent to the curvatures.3.2.17 shapecontoured form including curvature,arc(s),and even flats