ASTM_C_1048_-_18.pdf

Designation:C104818Standard Specification forHeat-Strengthened and Fully Tempered Flat Glass1This standard is issued under the fixed designation C1048;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers the requirements for mono-lithic flat heat-strengthened and fully tempered coated anduncoated glass produced on a horizontal tempering systemused in general building construction and other applications.1.2 This specification does not address bent glass,or heat-strengthened or fully tempered glass manufactured on a verti-cal tempering system.1.3 The dimensional values stated in SI units are to beregarded as the standard.The units given in parentheses are forinformation only.1.4 The following safety hazards caveat pertains only to thetest method portion,Section 10,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety,health,andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2,3C162 Terminology of Glass and Glass ProductsC346 Test Method for 45-deg Specular Gloss of CeramicMaterialsC724 Test Method for Acid Resistance of Ceramic Decora-tions on Architectural-Type GlassC978 Test Method for Photoelastic Determination of Re-sidual Stress in a Transparent Glass Matrix Using aPolarizing Microscope and Optical Retardation Compen-sation ProceduresC1036 Specification for Flat GlassC1203 Test Method for Quantitative Determination ofAlkaliResistance of a Ceramic-Glass EnamelC1279 Test Method for Non-Destructive Photoelastic Mea-surement of Edge and Surface Stresses in Annealed,Heat-Strengthened,and Fully Tempered Flat GlassC1376 Specification for Pyrolytic and Vacuum DepositionCoatings on Flat GlassE1300 Practice for Determining Load Resistance of Glass inBuildings2.2 ANSI Standard:Z97.1 Safety Performance Specifications and Methods ofTest for Safety Glazing Materials Used in Buildings42.3 Other Documents:CPSC 16 CFR 1201Safety Standard for ArchitecturalGlazing Materials5GANA 01-0116 Proper Procedures for Cleaning Architec-tural Glass Products3.Terminology3.1 DefinitionsFor definitions of terms used in thisspecification,refer to Terminology C162 and SpecificationC1036.3.2 Definitions of Terms Specific to This Standard:3.2.1 bowthe deviation in flatness of a lite of glass,expressed over the entire width or length dimension of theglass or over a smaller,local area(see 10.7 for measurementtechnique).3.2.2 coating voids,condition Buncoated areas formingunintentional discernable irregularities in the intended floodcoat,pattern,or image.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 Oct.1,2018.Published November 2018.Originallyapproved in 1985.Last previous edition approved in 2012 as C1048 12a1.DOI:10.1520/C1048-18.2Reference to these documents shall be the latest issue unless otherwisespecified by the authority applying this specification.3For 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.4Available from American National Standards Institute,25 W.43rd St.,4thFloor,New York,NY 10036,and the Accredited Standards Committee Z97 websitein electronic format at .5Available from Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20402.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2.3 edge curl(also edge lift,edge kink)an out-of-planedeformation near the physical leading and/or trailing edges offlat glass processed in a horizontal roller hearth furnace,observed as being concave or convex in nature.3.2.4 heat-treated g