1、Designation: C 1464 06Standard Specification forBent Glass1This standard is issued under the fixed designation C 1464; 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
2、 year of last reapproval. Asuperscript epsilon (e) 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
3、dimensional values, 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 o
4、f the safety concerns,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:3C 162 Terminology of Gla
5、ss and Glass ProductsC 1036 Specification for Flat GlassC 1048 Specification for Heat-Treated Flat GlassKindHS, Kind FT Coated and Uncoated GlassC 1172 Specification for LaminatedArchitectural Flat GlassC 1422 Specification for Chemically Strengthened FlatGlass2.2 Federal Document:4CPSC 16 CFR 1201
6、Consumer Product Safety CommissionSafety Standard for Architectural Glazing Material3. Terminology3.1 DefinitionsRefer to Terminology C 162, Specifica-tions C 1036, C 1422, and C 1172, as appropriate.3.1.1 Blemishes in Flat GlassRefer to SpecificationsC 1036, C 1048, C 1422, and C 1172, as appropria
7、te.3.2 Definitions of Terms Specific to This Standard:3.2.1 bent glass, nflat glass that has been shaped whilehot into a body having curved surfaces.3.2.2 chord, na straight line segment that joins two pointsof an arc.3.2.3 compound bend, na profile shape composed ofcurvature of one or more radii, c
8、urved on two or more axes.3.2.4 crossbend, ndeviation from a straight edge along aline perpendicular to the curvature measured on the concaveside.3.2.5 cylindrical bend, na profile shape composed of asingle curvature with a constant radius and no straight sections,all curved on a single axis.3.2.6 d
9、egree of angle, nthe angular measurement of asegment of a curve.3.2.7 depth, non a circular bend, the distance from themidpoint of a chord to the arc measured along its radiusperpendicular to the circumference.3.2.8 elliptical bend, na curved profile shape composed oftwo or more tangential radii on
10、a single axis.3.2.9 girth, nthe distance around the concave or convexsurface measured perpendicular to the height including anyflats.3.2.10 height, nthe length measurement of the edge per-pendicular to the horizontal arc or girth.3.2.11 multiple bend, na profile shape composed of acurvature of two o
11、r more radii, all curved on a single axis, withat least 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.3.2.12 pock marks, nprocess surface blemishs that consistof small, shallow areas, circular in
12、 shape, on the surface of theglass.3.2.13 Ring marksprocess surface blemishs that consist ofshallow marks typically running along the perimeter of theglass surface.3.2.14 Rotationa condition where vertical edges (perpen-dicular to arc) are not parallel to bending axis.3.2.15 Serpentine bendprofile s
13、hape composed of con-cave and convex curvatures of one or more radii on a singleaxis with or without flat areas tangent to the curvatures.1This specification is under the jurisdiction of ASTM Committee C14 on Glassand Glass Products and is the direct responsibility of Subcommittee C14.08 on FlatGlas
14、s.Current edition approved April 1, 2006. Published April 2006. Originallyapproved in 2000. Last previous edition approved in 2000 as C 1464-00.2Reference to these standards shall be the latest revision unless otherwisespecified by the authority applying this specification.3For referenced ASTM stand
15、ards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.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, Washin
16、gton, DC 20402.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.16 Shapecontoured form including curvature, arc(s),and even flats.3.2.17 Single benda profile composed of a single radiuscurved on a single axis, possibly with one or
17、 two flat (plane)areas tangent to the curvature.3.2.18 Twistone or more of the corners of the glass are notin the same plane.4. Classification4.1 KindsBent glass furnished under this specificationshall be of the following kinds, as specified:4.1.1 Kind BABent glass shall be annealed flat glass,eithe
18、r transparent, patterned, or wired glass in accordance withthe applicable requirements of Specification C 1036, as furtherprocessed to conform with the requirements hereinafter speci-fied for bent glass.4.1.2 Kind BCSChemically strengthened bent glass shallbe flat glass, either transparent or patter
19、ned, in accordance withthe applicable requirements of Specification C 1036, as furtherprocessed to conform with the requirements hereinafter speci-fied for bent glass and in accordance with the applicablerequirements of Specification C 1422 for chemically strength-ened flat glass.4.1.3 Kind BFTFully
20、 tempered bent glass shall be flatglass, either transparent or patterned, in accordance with theapplicable requirements of Specification C 1036, as furtherprocessed to conform with the requirements hereinafter speci-fied for bent glass and in accordance with the applicablerequirements of Specificati
21、on C 1048 for fully tempered glass.4.1.4 Kind BHSHeat-strengthened bent glass shall be flatglass, either transparent or patterned, in accordance with theapplicable requirements of Specification C 1036, as furtherprocessed to conform with the requirements hereinafter speci-fied for bent glass and in
22、accordance with the applicablerequirements of Specification C 1048 for heat-strengthenedglass.4.1.5 Kind BLLaminated bent glass shall be flat glass,either transparent or patterned, in accordance with the appli-cable requirements of Specification C 1036 as further pro-cessed with the requirements her
23、einafter specified for bentglass and in accordance with the applicable requirements ofSpecification C 1172 for laminated glass.4.1.6 Kind BXBent glass with miscellaneous combina-tions not previously combined.5. Ordering Information5.1 Purchasers should include the following information inprocurement
24、 documents:5.1.1 Title, number, and date of this specification.5.1.2 Kind of bent glass as referred to in this specification(see Section 4).5.1.3 Fabrication requirements (see Section 6).5.1.4 Thickness Requirements:5.1.4.1 Overall thickness designation.5.1.4.2 Thickness of individual lites in the l
25、aminate.5.1.4.3 Interlayer thickness and type.5.1.5 Nominal height, width, radius (see definitions andFigs. 1-3).5.1.5.1 Blackline or blueline prints, drawing, template, con-figuration, specification, or other forms of information whichdetail overall size, type of bend, and orientation.5.1.6 Safety
26、standards or regulations to which the glassmust conform.5.1.7 Packaging RequirementsGlass packaging and pro-tection will be standard manufacturer practice unless otherwisespecified. Consult manufacturer before specifying.A = outside radiusB = chordC = heightD = girthE = depthFIG. 1 Cylindrical BendC
27、1464062F1 = straight leg dimensionF2 = straight leg dimensionA = degree of angleR = radius of curveL = lengthFIG. 2 Single BendF1. F2, F3, = straight leg dimensionsA1, A2 = curve anglesR1, R2= curve radiiL = lengthFIG. 3 Multiple BendC14640636. Fabrication Requirements6.1 Cutting to overall dimensio
28、ns, edgework, drilled holes,notching, grinding, sandblasting, and etching are permissible.6.1.1 When the glass is specified as chemically strength-ened, heat-strengthened, or fully tempered, the fabricationprocesses in 6.1 must be completed prior to the strengtheningprocess.6.2 Glass intended for sa
29、fety glazing applications as speci-fied by building codes shall be permanently marked with thename or trademark of the manufacturer and the designation ofthe applicable safety glazing standard.6.3 Thickness TolerancesThickness shall be in accor-dance with the thickness requirements of Specifications
30、 C 1036and C 1172.6.4 Dimensional Tolerances:6.4.1 Height shall not exceed the deviations shown in Table1.6.4.2 Girth shall not exceed the deviations shown in Table 2.6.4.3 Shape accuracy shall not exceed the deviations shownin Table 3.6.4.4 Crossbend shall not exceed the deviations shown inTable 4.
31、6.4.5 Twist shall not exceed the deviations shown in Table5.6.5 BlemishesFor process surface blemishes, refer toSpecifications C 1036 for flat glass and C 1172 for laminatedglass.6.5.1 Pock marks shall not exceed 1.6 mm (116 in.) in thecentral portion of the glass and 2.4 mm (332 in.) in the outerar
32、ea (see 7.3.4).NOTE 1The central area is considered to form an oval or circlecentered on the lite whose axes or diameters do not exceed 80 % of theoverall dimension. The remaining area is considered the outer area.NOTE 2Separated by at least 305 mm (12 in.).6.5.2 Ring marks shall not exceed 1.6 mm (
33、116 in.) in thecentral portion of the glass and 2.4 mm (332 in.) in the outerarea (see 7.3.4). See Note 1 and Note 2.7. Test Methods7.1 Impact Test for Safety GlazingTest and interpret inaccordance with CPSC 16 CFR 1201.A = outside radiusD = girthE = depthFIG. 4 Compound BendTABLE 1 Height Tolerance
34、sHeight, mm (in.) Nominal Glass Thickness, mm (in.)Up to 12 (Up to12) 12 (12)0 to 1520 63.2 64.8(0-60) (618)(6316)1520 to 2000 63.2 64.8(60 to 78) (618)(6316)2000 64.8 64.8(78) (6316)(6316)TABLE 2 Girth TolerancesGirth, mm (in.) Nominal Glass Thickness, mm (in.)Up to 12 (Up to12) 12 (12)0 to 1520 63
35、.2 64.8(060) (618)(6316)1520 to 2500 64.8 66.4(60 to 78) (6316)(614)2500 64.8 66.4(78) (6316)(614)TABLE 3 Shape Accuracy TolerancesGirth, mm (in.) Nominal Glass Thickness, mm (in.)3-5 (18-316) 6-8 (14-516) 10-12 (38-12) 12 (12)0-1220 63.2 63.2 63.2 64.8(0-48) (618)(618)(618)(6316)1220-2440 63.2 63.2
36、 63.2 64.8(48-96) (618)(618)(618)(6316)2440-3350 64.8 64.8 64.8 64.8(96-132) (6316)(6316)(6316)(6316)3350 64.8 64.8 64.8 66.4(132) (6316)(6316)(6316)(614)C14640647.2 Dimensions:7.2.1 Girth is measured on the convex surface with aflexible tape.7.2.2 Length of edge is measured with a stable, sturdy ta
37、pe.7.3 Dimensional Inspection:7.3.1 Shape accuracy is determined by placing a template onthe concave surface of the bend, then measuring the deviationbetween the template and glass or placing glass arc on tracingof theoretical shape on either concave or convex line, thenmeasuring the deviation betwe
38、en the tracing and the glass.7.3.2 Twist is determined by setting glass in a 90 testfixture that is inclined 5 to 7 from vertical. The glass ispositioned with the bottom corners in tight to the back surface.If required, the top corner that is touching, or closest totouching, can be held against this
39、 surface. The actual distancethat the other corner is away from the surface is the twist value.7.3.3 Crossbend is determined by placing a straightedgealong the vertical edge (perpendicular to the arc) on theconcave surface of glass, then measuring the distance betweenthe glass and straightedge.7.3.4
40、 Visual InspectionPlace specimen in a vertical posi-tion. The viewer shall look through the specimen, usingdaylight without direct sunlight, or using a background lightsuitable for observing the blemishes. View at 78 in. (2 m).8. Keywords8.1 bent glass; chemically strengthened; curved glass; heat-st
41、rengthened; laminated; temperedASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof i
42、nfringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this sta
43、ndard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your
44、views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by conta
45、cting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 4 Maximum Crossbend Deviation,mm (in.)Height, mm (in.) Nominal Glass Thickness, mm (in.)3-5 mm(18-316)6-8 mm(14-516)10-12 mm(38-12)12 mm(12)0-12
46、20 2.4 3.2 3.2 3.2(0-48) (332)(18)(18)(18)1220-2440 3.2 3.2 4.8 4.8(0.48-96) (18)(18)(316)(316)2440-3350 4.8 4.8 4.8 4.8(96-132) (316)(316)(316)(316)3350 4.8 4.8 4.8 6.4(132) (316)(316)(316)(14)TABLE 5 Maximum Twist DeviationAHeight, mm (in.) Girth, mm (in.)0-1830(0-72)1830-2440(72-96)2440-3050(96-1
47、20)3050-3660(120-144)3660(144)0-1830 3.2 3.2 4.8 4.8 6.4(0-72) (18)(18)(316)(316)(14)1830-2440 4.8 4.8 4.8 4.8 7.9(72-96) (316)(316)(316)(316)(516)2440-3050 4.8 4.8 4.8 6.4 7.9(96-120) (316)(316)(316)(14)(516)3050 4.8 4.8 6.4 6.4 9.5(120) (316)(316)(14)(14)(38)AThis table applies to 3-mm (18-in.) glass to 12-mm (12-in.) glass with a radiusgreater than 460 mm (18 in.). For twist tolerances on other thicknesses orradiuses, contact the supplier.C1464065
