1、Designation: E 2189 02Standard Test Method forTesting Resistance to Fogging in Insulating Glass Units1This standard is issued under the fixed designation E 2189; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revi
2、sion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 uni
3、ts 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 The unit construction used in this test method containsconstruction details that are essential components of the test.D
4、ifferent types of glass, different glass thicknesses and differ-ent airspace sizes may affect the test results.1.4 This test method is not applicable to sealed insulatingglass units containing a spandrel glass coating due to testinglimitations.1.5 The values stated in SI units are to be regarded as
5、thestandard. The values given in parentheses are for informationonly.1.6 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
6、applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:C 162 Terminology of Glass and Glass Products2C 717 Terminology of Building Seals and Sealants3E 631 Terminology of Building Constructions4E 2188 Test Method for Insulating Glass Unit Performance5E 2190 S
7、pecification for Insulating Glass Unit Performanceand Evaluation53. Terminology3.1 Definition of Terms:3.1.1 For definitions of terms found in the standard, refer toTerminology C 717, Terminology C 162 and TerminologyE 631.3.2 Definitions of Terms Specific to This Standard:3.2.1 fog, nvisible deposi
8、ts present after testing in accor-dance with Section 8.4. 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 provide a means fortesting the resistance to fogging caused
9、 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 accordancewith Test Method E 2188, Section 5 or Specificatio
10、n E 2190,Section 5, or both.5.2 For double-glazed units, at least three specimens ofidentical component materials and construction shall be sub-mitted.5.3 For triple-glazed units, at least five specimens of iden-tical component materials and construction shall be submitted.For these units, the manuf
11、acturer must specify the exteriorsurface.NOTE 1Certain reflective coatings may interfere with the ability toview fog.5.4 During all stages of storage and handling, the units shallbe held in a vertical position with equal support to all panes andno compression loading.5.5 Two units shall be randomly
12、selected for this test.Damaged units shall not be tested.6. Apparatus6.1 Volatile Fog Test Apparatus:1This test method is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.22on Durability Performance of Building Constructions
13、.Current edition approved March 10, 2002. Published May 2002.2Annual Book of ASTM Standards, Vol 15.02.3Annual Book of ASTM Standards, Vol 04.07.4Annual Book of ASTM Standards, Vol 04.11.5Annual Book of ASTM Standards, Vol 04.12.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
14、 Conshohocken, PA 19428-2959, United States.6.1.1 The dimensions and components are found in Fig. 1.The construction of the apparatus shall be capable of maintain-ing 50 6 3C (122 6 5F). In order to maintain thistemperature, a fan shall be mounted in the box. The fan shallrun continuously.6.1.2 The
15、apparatus shall be constructed from sturdy, solidmaterials that minimize the escape of ultraviolet light into thesurrounding area.12 or34 in. plywood has been found suitablefor this purpose. Stainless steel construction is also acceptable.6.1.3 The interior of the apparatus shall have a reflectivesu
16、rface. 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 supports are located as shown inFig. 1.6.1.5 The cooling plates are constructed of a conductivematerial such as copper or brass.
17、The cooling plates shall benominally 150 6 5 mm (5.91 6 0.20 in.) diameter and shall beplaced directly in complete contact with the glass surface forthe duration of the test. Alternatively, a rectangular coolingplate shall be 0.0177 6 0.0006 m2(27.4 6 1.0 in.2) in area.6.1.6 The cooling water temper
18、ature is determined as thewater immediately exits the apparatus from each cooling plateas shown in Figure 1. The cooling water temperature at theselocations shall be 21 6 2C.6.2 Ultraviolet Light Source:NOTE 2Warning: Ultraviolet light sources used in this test methodare harmful to the human body, e
19、specially to the eyes. Appropriateprotective measures must be observed.6.2.1 The source shall consist of one ultraviolet lamp. Thislamp shall be an Osram Ultra Vitalux 300W Lamp6and isplaced as shown in Fig. 1. The output of the UV source shall6Available from Westburne Electric, 635 Westburn Drive,
20、Vaughn, Ontario L4K4R8 Canada.FIG. 1 Volatile Fogging Exposure BoxE2189022be measured from a distance of 355 6 5 mm with a long-waveultraviolet meter7and shall not be less than 400 W/cm2.6.3 The chamber shall have radiation-shielded thermo-couples to continuously monitor the chamber temperature atth
21、e locations shown in Fig. 1.7. 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 Make sure that the glass surfaces a
22、re clean.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.8.2 Test Procedure:8.2.1 Mount the two selected specimens within a volat
23、ilefog test apparatus similar to that shown in Fig. 1 and close thelid before turning on the UV lamp.8.2.2 Turn on the UV lamp source.8.2.3 Maintain all thermocouples (shown in Fig. 1 as TC1,TC2, TC3 and TC4) at 50 6 3C (122 6 5F). The fan andvents can be used to regulate this temperature. The tempe
24、raturedifferential from thermocouple #1 to thermocouple #2 shall notexceed 3C (5F). The temperature differential from thermo-couple #3 to thermocouple #4 shall not exceed 3C (5F).8.2.4 Maintain the temperature of the cooling water at 21 62C (70 6 5F). Determine the temperature of the coolingwater im
25、mediately after it leaves the test apparatus for eachcooling plate.8.2.5 Alternatively, an electric chilling apparatus can beused to control the cooling plate at the required temperature asnoted in 8.2.4. Determine the temperature of the cold plateportion of this device.8.2.6 The specimens shall be
26、exposed to these conditionsfor a period of seven days or as determined by the specifier.8.2.7 For triple pane units, both cavities shall be tested. Twounits shall be tested with the exterior lite (as identified by themanufacturer) towards the cooling plate and two units shall betested with the inter
27、ior lite (as identified by the manufacturer)towards the cooling plate.8.3 Remove the test specimens from the test apparatus.Examine them carefully for fog by holding at arms length(approximately 500 to 750 mm (20 to 30 in.) from the eyeswith light behind the specimen. Move the specimen to anyangle n
28、ecessary to thoroughly check the surface of the glass forfogging.8.4 If fog is not observed, record the observation. Thetesting is complete.8.5 If fog is observed, record the observation and conditionthe test specimen(s) for 24 h at room temperature. After the24-h period, reexamine the specimen(s),
29、as in 8.3.8.6 If fog is not observed at the 24-h observation, record theobservation. The testing is complete.8.7 If fog is observed (at the 24-h observation), record theobservation and condition the test specimen an additional 6days. After the 7 day period, reexamine the specimens, as in8.3.8.8 The
30、units shall show no evidence of fogging when testedand viewed in accordance with 8.3-8.7.9. Report9.1 Report the following data:9.1.1 Complete Description of Specimen Tested:9.1.1.1 Dimensions of the test specimen (width by height)and overall thickness.9.1.1.2 Type and thickness of glass.9.1.1.3 Gla
31、ss coatings and surface locations if applicable.9.1.1.4 Airspace thicknesses.9.1.1.5 Describe the spacer composition(s) and configura-tion(s).9.1.1.6 Describe the corner construction including the typeand number of corner keys.9.1.1.7 Desiccant type and quantity, if provided.9.1.1.8 Presence and typ
32、e of tube, if applicable.9.1.1.9 Presence and composition(if known) of muntin bars.9.1.1.10 Sealant type and dimensions, if provided.9.1.1.11 Manufacturer and manufactured date (month orquarter, if known, and year).9.1.1.12 Date testing began.9.2 Duration of Test:9.2.1 Duration of fog test (number o
33、f days).9.3 Test temperature and gradient.9.4 Presence of fog after removal from the chamber, after 24h and after 7 days, if applicable.9.5 Glass breakage, if observed.10. Precision and Bias10.1 PrecisionThe precision of the procedures in thesetest methods are being determined.10.2 BiasSince there i
34、s no accepted reference materialsuitable for determining the bias for the procedures in these testmethods, bias has not been determined.11. Keywords11.1 fogging of IGU; insulating glass units IGU; sealedinsulating glass units7A suitable meter is the Black-Ray UV Meter with J221 sensor cell. Availabl
35、efrom Ultra-Violet Products, Inc., 2066 West 11th Street, Upland, CA 91786.E2189023ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the
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38、ave not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is 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 serviceastm.org (e-mail); or through the ASTM website(www.astm.org).E2189024
