ASTM E2189-2010 Standard Test Method for Testing Resistance to Fogging in Insulating Glass Units《测定绝缘玻璃元件抗雾的标准试验方法》.pdf

1、Designation: E2189 10Standard Test Method forTesting Resistance to Fogging in Insulating Glass Units1This standard is issued under the fixed designation E2189; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi

2、on. 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 testing theresistance to fogging of preassembled permanently sealedinsulating glass units

3、or insulating glass units with capillarytubes intentionally left open.1.2 This test method is applicable only to sealed insulatingglass units that are constructed with glass.1.3 This test method is applicable to both double-glazed andtriple-glazed insulating glass units; for triple-glazed insulating

4、glass units where both of the outer lites are glass and the innerlite is either glass or a suspended film.1.4 The unit construction used in this test method containsconstruction details that are essential components of the test.Different types of glass, different glass thicknesses and differ-ent air

5、space sizes may affect the test results.1.5 This test method is not applicable to sealed insulatingglass units containing a spandrel glass coating due to testinglimitations.1.6 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.7

6、 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 Docu

7、ments2.1 ASTM Standards:2C162 Terminology of Glass and Glass ProductsC717 Terminology of Building Seals and SealantsE631 Terminology of Building ConstructionsE2188 Test Method for Insulating Glass Unit PerformanceE2190 Specification for Insulating Glass Unit Performanceand Evaluation3. Terminology3.

8、1 Definition of Terms:3.1.1 For definitions of terms found in the standard, refer toTerminology C717, Terminology C162 and Terminology E631.3.2 Definitions of Terms Specific to This Standard:3.2.1 fog, nvisible deposits present after testing in accor-dance with Section 8 that were not present prior

9、to testing. Fogdoes not include defects in a glass coating or the glass substratewhen examined prior to testing.4. Significance and Use4.1 This test method is intended to provide a means fortesting the resistance to fogging in sealed insulating glass units.4.2 This test method is also intended to pr

10、ovide a means fortesting the resistance to fogging caused by components in theinterior of the unit. These interior components include, but arenot limited to, suspended or applied films, decorative compo-nents, muntins, and coatings.5. Test Specimens5.1 Each test specimen shall be manufactured in acc

11、ordancewith Test Method E2188, Section 5.5.2 For test specimens containing muntin bars, the speci-mens shall be fabricated with the muntin bars dividing thespecimens into nine equal areas (3 by 3). See Fig. 1.5.3 Viewing of the fog shall not be compromised by anyinternal component.5.4 For double-gla

12、zed units, at least three specimens ofidentical component materials and construction shall be sub-mitted.5.5 For triple-glazed units, at least five specimens of iden-tical component materials and construction shall be submitted.For these units, the manufacturer shall specify the exteriorsurface.NOTE

13、 1Certain reflective coatings may interfere with the ability toview fog.5.6 During all stages of storage and handling, the units shallbe held in a vertical position with equal support to all panes andno compression loading.5.7 Damaged units shall not be tested.1This test method is under the jurisdic

14、tion of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.22on Durability Performance of Building Constructions.Current edition approved Nov. 1, 2010. Published November 2010. Originallyapproved in 2002. Last previous editions approved in 2002 as E218

15、9 - 02. DOI:10.1520/E2189-10.2For 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.1Copyright ASTM International, 1

16、00 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Apparatus6.1 Volatile Fog Test Apparatus:6.1.1 The dimensions and components are found in Fig. 2.The construction of the apparatus shall be capable of maintain-ing 50 6 3C. In order to maintain this temperature, a

17、fan shallbe mounted in the box. The fan shall run as needed in order tomaintain the air temperature in the apparatus.6.1.2 The apparatus shall be constructed from sturdy, solidmaterials that minimize the escape of ultraviolet light into thesurrounding area.12 or34 in. plywood has been found suitable

18、for this purpose. Stainless steel construction is also acceptable.6.1.3 The interior of the apparatus shall have a reflectivesurface. If plywood is used to construct the apparatus, then linethe entire interior of the apparatus with aluminum foil or otherreflective material.6.1.4 The test specimen su

19、pports shall be located as shownin Fig. 2.6.1.5 The chamber shall have radiation-shielded thermo-couples to continuously monitor the chamber air temperature atthe locations shown in Fig. 2, identified by the labels TC1through TC4.6.1.6 The cooling plates shall be constructed of a conduc-tive materia

20、l such as copper or brass. The cooling plates shallbe 150 6 5 mm diameter and shall be placed directly incomplete contact with the glass surface for the duration of thetest. Alternatively, a rectangular cooling plate shall be177 6 6m2in area with an aspect ratio (long side/short side)less than or eq

21、ual to 1.4.6.1.7 The cooling water temperature shall be determined asthe water immediately exits the apparatus from each coolingplate as shown in Figure 1. The cooling water temperature atthese locations shall be 21 6 2C.6.1.8 Alternatively, an electric chilling apparatus shall beused to control the

22、 cooling plate.6.2 Ultraviolet Light Source:6.2.1 WarningUltraviolet light sources used in this testmethod are harmful to the human body, especially to the eyes.Appropriate protective measures must be observed. The sourceshall consist of one 300 W ultraviolet lamp3and shall be placedas shown in Fig.

23、 1. The output of the UV source shall bemeasured from a distance of 355 6 5 mm with a long-waveultraviolet meter4and shall not be less than 400 W/cm2.6.3 Fog Examination Light Source:6.3.1 The source shall consist of two fluorescent light bulbsin a standard two bulb fixture. These bulbs shall be 20

24、W, coolwhite bulbs and shall be nominally 610 mm in length.7. Test Specimen Preparation7.1 The sealed insulating glass units shall be sealed aminimum of 4 weeks from date of manufacture to allow forstabilization before testing begins. The manufacturer has theoption to waive this requirement.7.2 The

25、glass surfaces shall be clean prior to testing.8. Procedure8.1 Chamber Preparation:8.1.1 The cooling plate shall be clean and the contactsurface shall be flat.8.1.2 For double-glazed units with low-e coatings, the coldplate shall be located on the low-e coated lite.8.1.3 For triple-glazed units, bot

26、h cavities shall be tested.Two units shall be tested with the exterior lite (as identified bythe manufacturer) towards the cooling plate and two units shallbe tested with the interior lite (as identified by the manufac-turer) towards the cooling plate.8.2 Test Procedure:8.2.1 Randomly select two dou

27、ble-glazed specimens or fourtriple-glazed specimens for testing.8.2.2 Examine the surfaces of each test specimen prior totesting for flaws and deposits as indicated in 8.3. Record theposition or location of any surface flaws that are seen. If anydeposits are seen, the specimen shall not be tested.8.

28、2.3 Mount the two selected specimens within a volatilefog test apparatus similar to that shown in Fig. 2 and close thelid before turning on the UV lamp.8.2.4 Turn on the UV lamp source.8.2.5 Maintain all thermocouples (shown in Fig. 2 as TC1,TC2, TC3 and TC4) at 50 6 3C. The fan and vents shall beus

29、ed to regulate this air temperature. The temperature differ-ential from thermocouple #1 to thermocouple #2 shall notexceed 3C. The temperature differential from thermocouple#3 to thermocouple #4 shall not exceed 3C.8.2.6 Maintain the temperature of the cooling water at21 6 2C. Determine the temperat

30、ure of the cooling waterimmediately after it leaves the test apparatus for each coolingplate.3The only suitable lamp is the Osram Ultra Vitalux lamp. The sole source ofsupply of the apparatus known to the committee at this time is from WestburneElectric, 635 Westburn Drive, Vaughn, Ontario L4K 4R8 C

31、anada. If you are awareof alternative suppliers, please provide this information to ASTM InternationalHeadquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee,1which you may attend.4The only suitable meter is the Blak-Ray UV Meter with J221 se

32、nsor cell. Thesole source of supply of the apparatus known to the committee at this time is UVP,LLC, 2066 West 11th St., Upland, CA 91786. If you are aware of alternativesuppliers, please provide this information to ASTM International Headquarters.Your comments will receive careful consideration at

33、a meeting of the responsibletechnical committee,1which you may attend.FIG. 1 Schematic Drawing of Insulating Glass Unit with MuntinBarsE2189 1028.2.7 If an electric chilling apparatus is used to control thecooling plate temperature, maintain the required temperature asnoted in 8.2.6. Measure the tem

34、perature of the surface of thecold plate portion of this device.8.2.8 The specimens shall be exposed to these conditionsfor a period of seven days or as determined by the specifier.8.2.9 For triple pane units, both cavities shall be tested. Twounits shall be tested with the exterior lite (as identif

35、ied by themanufacturer) towards the cooling plate and two units shall betested with the interior lite (as identified by the manufacturer)towards the cooling plate.8.3 After exposure, remove the test specimens from the testapparatus. Examine them carefully for fog by holding at armslength (approximat

36、ely 500 to 750 mm) from the eyes. Movethe specimen to any angle necessary using both reflected andtransmitted light to thoroughly check the surface of the glassfor fogging.FIG. 2 Volatile Fogging Exposure BoxE2189 1038.3.1 The examination for the presence of fog shall be donein a dark room or darken

37、ed area where the only light source forviewing the test specimens in the fog examination light sourcedescribed in 6.3.8.3.2 The lights used to examine the test specimens shall bea minimum of 1.5 m from the examiner.8.3.3 To view the specimens in transmitted light, hold thetest specimens in front of

38、the fluorescent bulbs and examine thearea of glass where the cooling plate had been located.8.3.4 To view the specimens in reflected light, the examinershall stand between the light source and the test specimens.Hold the test specimens to reflect the fluorescent light andagain examine the glass surf

39、ace as in 8.3.3.8.3.5 The glass surface shall be viewed directly through thearea where the cooling plate was located during testing andthrough the opposite lite of glass.8.3.6 In addition to examining the area under the coolingplate, the entire glass surface shall be examined and comparedto the glas

40、s surface before testing. Flaws or deposits seen aftertesting shall be recorded and reported.8.4 If fog is not observed, record this information. Thetesting is complete.8.5 If fog is observed, record this information and hold thetest specimen(s) for 24 h at room temperature. After this 24-hperiod, r

41、e-examine the specimen(s), as in 8.3.8.6 Record the temperature readings for each of the fourthermocouples at least once during the testing period.8.7 If fog is not observed, record this information. Thetesting is complete.8.8 If fog is observed at the 24-h observation, record thisinformation and ho

42、ld the test specimen an additional 6 days.After the 7 day period, reexamine the specimens, as in 8.3.8.9 The units shall show no evidence of fogging when testedand viewed in accordance with 8.3-8.8.9. Report9.1 Report the following data:9.1.1 Complete Description of Specimen Tested:9.1.1.1 Dimension

43、s of the test specimen (width, height andoverall thickness).9.1.1.2 Type and thickness of glass.9.1.1.3 Glass coatings and surface locations if applicable.9.1.1.4 Airspace thicknesses.9.1.1.5 Spacer composition(s) and configuration(s).9.1.1.6 Corner construction including the type and numberof corne

44、r keys.9.1.1.7 Desiccant type and quantity, if provided.9.1.1.8 Presence and type of tube, if applicable.9.1.1.9 Presence and composition (if known) of muntinbars.9.1.1.10 Sealant type and dimensions, if provided.9.1.1.11 Manufacturer and manufactured date (month orquarter, if known, and year).9.1.2

45、 Duration of fog test (number of days).9.1.3 The four thermocouple temperatures (TC1 throughTC4) range.9.1.4 Presence or absence of fog after removal from thechamber, after 24 h and after 7 days, if applicable.9.1.5 Glass breakage, if observed.10. Precision and Bias10.1 Precision and BiasNo informat

46、ion is presentedabout either the precision or bias of Test Method E2189 formeasuring fog since the test result is nonquantitative. Initialinterlaboratory test results show that specimens randomlychosen from the same group of test specimens produce thesame test results within each test facility. When

47、 test specimensof identical construction were tested at five different laborato-ries, four of the five laboratories were able to correctly identifyall test specimens as either passing or failing the test. One testlaboratory incorrectly reported one set of test specimen results.In total, of the 40 sp

48、ecimens tested, 38 test specimens werecorrectly identified as either passing or failing the test. Addi-tional interlaboratory studies are being planned.11. Keywords11.1 fogging of IGU; insulating glass units IGU; sealedinsulating glass unitsASTM International takes no position respecting the validit

49、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 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