1、Designation: E2953 14Standard Specification forEvaluating Accelerated Aging Performance ofElectrochromic Devices in Sealed Insulating Glass Units1This standard is issued under the fixed designation E2953; the number immediately following the designation indicates the year oforiginal adoption or, in
2、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 specification is applicable to all electrochromic(EC) glass whose visible light
3、 transmittance or near infraredlight transmittance properties, or both, can be changed revers-ibly by the application or removal of an electrical voltage. Thisincludes absorptive and reflective EC devices.1.2 This specification does not apply to other types ofdynamic glass which do not solely requir
4、e an electricalstimulus to change light transmittance such as photochromicand thermochromic glazings and hybrid active/passive chro-mogenics.1.3 This specification covers electrochromic devices inpreassembled permanently sealed insulting glass units with oneor more cavities in which at least one lit
5、e contains an ECdevice (which may be in the form of a laminated lite or a singlepane with coatings applied). This specification is also appli-cable to EC devices in preassembled insulating glass units withcapillary tubes intentionally left open. As such this specifica-tion also requires conformance
6、to Specification E2190.1.4 This specification is applicable only to sealed insulatingglass units that are constructed with glass and fabricated forvision glass areas for use in buildings, such as sliding doors,windows, skylights, and exterior wall systems.1.5 Qualification under this specification i
7、s intended toprovide a basis for evaluating the aging performance ofelectrochromic devices in sealed insulating glass units.1.6 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.7 This standard does not purport to address all of
8、 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:2C162 Terminology of Glas
9、s and Glass ProductsC717 Terminology of Building Seals and SealantsE631 Terminology of Building ConstructionsE2141 Test Method for Accelerated Aging of Electrochro-mic Devices in Sealed Insulating Glass UnitsE2190 Specification for Insulating Glass Unit Performanceand Evaluation3. Terminology3.1 Def
10、initionsFor definitions of terms found in thisspecification, refer to Terminologies C162, C717, and E631.3.2 Definitions of Terms Specific to This Standard:3.2.1 dynamic rangethe visible light transmittance rangeof an EC device, measured as the difference between thevisible light transmittance of th
11、e highest transmittance stateand the lowest transmittance state.3.2.2 electrochromic device (ECD), na combination ofmaterials that include materials in which the transmittance,reflection, and absorption properties can be altered, and otherlayers, such as transparent conducting oxide (TCO) layers for
12、altering the optical properties (for example, transmittance,reflectance, absorptance) of the device in response to anapplied electric field.3.2.3 electrochromic (EC) glazing, nin a prepared open-ing of a building, the material installed which consists of anECD with layer(s) of materials in which the
13、 optical propertiescan change in response to an applied electrical field, attendantmaterials, and one or more lites of glass.3.2.4 highest transmittance state, nalso referred to as theclear state or bleached state, a descriptor for an EC glazingwhen it is in the transmittance state with the highest
14、photopicspecular light transmittance.3.2.5 lowest transmittance state, nalso referred to as thetinted state, dark state, or colored state, a descriptor for an EC1This specification is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommi
15、ttee E06.22on Durability Performance of Building Constructions.Current edition approved Dec. 1, 2014. Published January 2015. DOI: 10.1520/E2953-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandar
16、ds 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 States1glazing when it is in the transmittance state with the lowestphotopic specular light transmittance.
17、3.2.6 sealed insulating glass unit, na preassembled unit,comprising lites of glass, which are sealed at the edges andseparated by dehydrated cavity(s), intended for vision areas ofbuildings. The unit is normally used for windows, windowwalls, picture windows, sliding doors, patio doors, or othertype
18、s of fenestration.3.3 Acronyms:3.3.1 ECDelectrochromic device3.3.2 IGinsulating glass3.3.3 IGUsinsulating glass units(s)3.3.4 Hspecular (regular) transmittance in the highesttransmittance state3.3.5 Lspecular (regular) transmittance in the lowesttransmittance state4. Performance Requirements4.1 For
19、the specimens tested to Test Method E2141, 6.1,visible light transmittance in the highest transmittance state andthe lowest transmittance state shall change by no more than65 %T absolute. That is:Hinitial!2Hfinal!#0.05 (1)Linitial!2Lfinal!#0.05where:H(initial) = visible light transmittance in the hi
20、ghest trans-mittance state measured prior to testing ac-cording to Test Method E2141,L(initial) = visible light transmittance in the lowest trans-mittance state prior to testing according to TestMethod E2141,H(final) = visible light transmittance in the highest trans-mittance state measured after te
21、sting accord-ing to Test Method E2141, andL(final) = visible light transmittance in the lowest trans-mittance state measured after testing accord-ing to Test Method E2141.4.2 Insulating glass test specimens containing the electro-chromic device shall meet the requirements of SpecificationE2190.5. Te
22、st Specimens5.1 Five identical specimens (each in an IGU) shall beprepared for testing to Test Method E2141. One specimen shallremain untested for comparison per Test Method E2141 andfour shall be exposed to the test conditions according to TestMethod E2141. The minimum test specimen size is 250 by
23、250mm. Four specimens must be able to fit onto the test planesimultaneously.5.2 Test specimens for determining conformance to Speci-fication E2190 shall be prepared as described in SpecificationE2190 and shall be constructed with all EC coatings, electricalconnections and seal penetrations (such as
24、busbars, connectors,wires or electrical feedthroughs) in place in order to ensure theimpact of the electrical system integration on the aging of theIGU is tested.6. Test Methods6.1 Test Method E2141:6.1.1 Follow Test Method E2141.6.1.2 The specimen test temperatures as measured at thecenter of the o
25、uter surface of the EC pane in the IGU shall be85 6 7C.6.1.3 Take one set of visible light transmittance measure-ments in the highest and lowest transmittance states in thecenter of the glass. Do not measure the transmission in thelocation where tape has been used to hold or shield thethermocouple h
26、as shielded the glass from the incident radia-tion.6.1.4 The transmittance measurements of the highest andlowest transmittance states shall be made after waiting for 30min from the start of the transition for the specimens to reachtheir extreme states or until the rate of change of transmittanceis l
27、ess than 0.4 %T per min, whichever occurs first.6.2 Specification E2190:6.2.1 Ensure specimens in 5.2 have passed the specificationrequirements found in Specification E2190. If gas filled ECIGUs are not to be certified, 4.3 of Specification E2190 doesnot apply.7. Qualification7.1 When at least three
28、 of the four test specimens have metthe requirements as described in Section 4, this set of testspecimens shall be deemed to be qualified according to thisspecification at the Exterior Glazed Product Classification orthe Room-Side Glazed Product Classification, depending onthe selected specimen orie
29、ntation during the test. The ExteriorProduct Classification is for those products that meet thisspecification after being tested with the lite containing the ECdevice closest to the lamp source, and the Room-Side ProductClassification is for those products that meet this specificationafter being tes
30、ted with the lite containing the EC devicefurthest away from the lamp source.7.2 If more than one specimen fails to meet the require-ments for any reason including accidental damage, this set ofspecimens shall not be qualified according to this specification.8. Report8.1 Two separate reports shall b
31、e generated, one for confor-mance related to Test Method E2141 (4.1 and 4.2) and onerelated to conformance to Specification E2190 (4.3).8.2 Test Method E2141 Report:8.2.1 Report all information as required in the Reportsection of Test Method E2141.8.2.2 Report the orientation of the EC containing li
32、te in theinsulating glass unit relative to the radiation source (that is, wasit tested in an exterior lite or room side lite glazed ECconfiguration).8.2.3 Report a full description of the make-up of the ECinsulating glass unit tested, including a description of the ECE2953 142pane and the non-EC pan
33、e, the cavity dimension and anyadditional films or coatings, or both.8.2.4 Report initial and final transmittance values for centerof glass for the four samples as is shown in Table X1.1 in theappendix.8.2.5 Record the elapsed time at which the %T measure-ments were made (initial and final).8.2.6 Re
34、cord the number of cycles and exposure hoursunder test conditions.8.2.7 Report whether or not the set of specimens meets thequalifications of this specification related to coating agingperformance per Test Method E2141 to either the ExteriorGlazed Product Classification standard or the Room-SideGlaz
35、ed Product Classification standard.8.3 Specification E2190 Report:8.3.1 Report all information as required by SpecificationE2190.8.3.2 Report whether or not the set of test specimens meetsthe qualifications of this specification related to EC insulatingglass unit performance per Specification E2190.
36、9. Keywords9.1 chromogenic glazing; dynamic glazing; electrochromic;electrochromic aging performance; sealed insulating glassunitsAPPENDIX(Nonmandatory Information)X1. EXAMPLE OF REPORT FORM DETAILING TEST RESULTS FOLLOWING TEST METHOD E2141ASTM International takes no position respecting the validit
37、y 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 infringement of such rights, are entirely their own responsibility.This standard is subject
38、 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 standard or for additional standardsand should be addressed to ASTM International Headquarter
39、s. 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 views known to the ASTM Committee on Standards, at the address shown below.This standard i
40、s 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 contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or servicea
41、stm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ X1.1 Example of Report Form Detailing Visible Light Transmittance Perfor
42、manceSpecimen Transmittance StateInitial VisibleLight TransmittanceFinal VisibleLight TransmittanceDifference BetweenFinal and InitialLight TransmittanceSpecification Meet Specification?Specimen 1 highest transmittance state 0.05 Y/Nlowest transmittance state 0.05 Y/NSpecimen 2 highest transmittance state 0.05 Y/Nlowest transmittance state 0.05 Y/NSpecimen 3 highest transmittance state 0.05 Y/Nlowest transmittance state 0.05 Y/NSpecimen 4 highest transmittance state 0.05 Y/Nlowest transmittance state 0.05 Y/NE2953 143
