ASTM_E_1300_-_16.pdf

Designation:E130016Standard Practice forDetermining Load Resistance of Glass in Buildings1This standard is issued under the fixed designation E1300;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 last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice describes procedures to determine the loadresistance(LR)of specified glass types,including combina-tions of glass types used in a sealed insulating glass(IG)unit,exposed to a uniform lateral load of short or long duration,fora specified probability of breakage.1.2 This practice applies to vertical and sloped glazing inbuildings for which the specified design loads consist of windload,snow load and self-weight with a total combined magni-tude less than or equal to 15 kPa(315 psf).This practice shallnot apply to other applications including,but not limited to,balustrades,glass floor panels,aquariums,structural glassmembers,and glass shelves.1.3 This practice applies only to monolithic and laminatedglass constructions of rectangular shape with continuous lateralsupport along one,two,three,or four edges.This practiceassumes that(1)the supported glass edges for two,three,andfour-sided support conditions are simply supported and free toslip in plane;(2)glass supported on two sides acts as a simplysupported beam;and(3)glass supported on one side acts as acantilever.For insulating glass units,this practice only appliesto insulating glass units with four-sided edge support.1.4 This practice does not apply to any form of wired,patterned,sandblasted,drilled,notched,or grooved glass.Thispractice does not apply to glass with surface or edge treatmentsthat reduce the glass strength.1.5 This practice addresses only the determination of theresistance of glass to uniform lateral loads.The final thicknessand type of glass selected also depends upon a variety of otherfactors(see 5.3).1.6 Charts in this practice provide a means to determineapproximate maximum lateral glass deflection.Appendix X1provides additional procedures to determine maximum lateraldeflection for glass simply supported on four sides.1.7 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.8 Appendix X2 lists the key variables used in calculatingthe mandatory type factors in Tables 1-3 and comments ontheir conservative values.1.9 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 determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C1036 Specification for Flat GlassC1048 Specification for Heat-Strengthened and Fully Tem-pered Flat GlassC1172 Specification for Laminated Architectural Flat GlassD4065 Practice for Plastics:Dynamic Mechanical Proper-ties:Determination and Report of ProceduresE631 Terminology of Building Constructions3.Terminology3.1 Definitions:3.1.1 Refer to Terminology E631 for additional terms usedin this practice.3.2 Definitions of Terms Specific to This Standard:3.2.1 acid etched glass,nglass surface that has beentreated primarily with hydrofluoric acid and potentially incombination with other agents.Acid etched glass strength shallbe considered as equivalent to float glass in this practiceprovided the glass thickness conforms to Specification C1036.3.2.2 aspect ratio(AR),nfor glass simply supported onfour sides,the ratio of the long dimension of the glass to theshort dimension of the glass is always equal to or greater than1.0.For glass simply supported on three sides,the ratio of the1This practice is under the jurisdiction of ASTM Committee E06 on Perfor-mance of Buildings and is the direct responsibility of Subcommittee E06.52 onGlass Use in Buildings.Current edition approved June 1,2016.Published August 2016.Originallyapproved in 1989.Last previous edition approved in 2012 as E1300 12a1.DOI:10.1520/E1300-16.2For referenced ASTM standards,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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 length of one of the supported edges perpendicular to the freeedge,to the length of the free edge,is equal to or greater than0.5.3.2.3 glass breakage,nthe fracture of any lite or ply inmonolithic,laminated,or insulating glass.3.2.4 Glass Thickness:3.2.4.1 thickness designation for laminated glass(LG),naterm used to specify a LG construction based on the combine