1、Designation:E226914Standard Test Method forDetermining Argon Concentration in Sealed Insulating GlassUnits using Gas Chromatography1This standard is issued under the fixed designation E2269;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi
2、sion,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 test method covers procedures for using gas chro-matographs to determine the concentration of argon g
3、as in thespace between the panes of sealed insulating glass.1.2 This test method is not applicable to insulating glassunits containing open capillary/breather tubes.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This sta
4、ndard 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
5、 Standards:2C162 Terminology of Glass and Glass ProductsC717 Terminology of Building Seals and SealantsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE355 Practice for Gas Chromatography Terms and Relation-shipsE631 Terminology of Building ConstructionsE691 Practice for Con
6、ducting an Interlaboratory Study toDetermine the Precision of a Test MethodE773 Test Method for Accelerated Weathering of SealedInsulating Glass Units(Withdrawn 2010)3E2188 Test Method for Insulating Glass Unit Performance3.Terminology3.1 DefinitionsFor definitions of terms found in thisstandard,ref
7、er to Terminologies C162,C717,and E631.3.2 Definitions of Terms Specific to This Standard:3.2.1 fill gasany gas or mixture of gases intended toreplace atmospheric air in the space between the panes of asealed insulating glass unit.A fill gas is typically inert;and themost commonly used fill gases in
8、clude argon,krypton,andsulfur hexafluoride(SF6).3.2.2 sealed insulating glass unita pre-assembled unit,comprising sealed panes of glass separated by dehydratedspace(s),intended for clear vision areas of buildings.the unitis normally used for windows,window walls,picture windows,sliding doors,patio d
9、oors,or other types of windows or doors.4.Significance and Use4.1 This test method is intended to provide a means fordetermining the concentration of argon,oxygen,and nitrogengases in individual sealed insulating glass units,which wereintended to be filled with a specific concentration of argon atth
10、e time of manufacture.4.2 The argon,oxygen,and nitrogen are physically sepa-rated by gas chromatography and compared to correspondingcomponents separated under similar conditions from a refer-ence standard mixture or mixtures of known composition.4.3 The composition of the sample is calculated from
11、thechromatogram by comparing the area under the curve of eachcomponent with the area under the curve of the correspondingcomponent on the reference standard chromatogram.4.4 It is essential that the person or persons performing thistest are very knowledgeable about the principles and tech-niques of
12、gas chromatography,operation and calibration of gaschromatographs.More information can be found in PracticeE355.4.5 It takes time for the fill gas to equilibrate in anyinsulating glass unit.This is particularly important in insulatingglass units using a tubular spacer and in units containinginterior
13、 components such as tubular muntin bars.Performingthis test before a unit has equilibrated could result in fill gasconcentrations that are measurably different than the actual fillgas concentration.1This test method is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is th
14、e direct responsibility of Subcommittee E06.22on Durability Performance of Building Constructions.Current edition approved April 1,2014.Published May 2014.Originallyapproved in 2003.Last previous edition approved in 2005 as E2269 05.DOI:10.1520/E2269-14.2For referenced ASTM standards,visit the ASTM
15、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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International
16、,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.6 This method may be used to determine the initial argongas concentration achieved by the filling method,or the argongas concentration in units which have been in service or whichhave been subjected to durability tests such as those describedin Test Methods E773 and E2188.4.7 This method is not applicable to units filled withmixtures of argon and gases other than air.4.8 This is a destructive test method in that
