1、Designation: E 2188 02An American National StandardStandard Test Method forInsulating Glass Unit Performance1This standard is issued under the fixed designation E 2188; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st revision. 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 theperformance of preassembled permanently sealed insulatingglass units
3、or insulating glass units with capillary tubesintentionally 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 containsdimensions that are an essential component of the test. Differ-ent
4、types of glass, different glass thicknesses and differentairspace 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 thestandard
5、. 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 applica-bil
6、ity of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:C 1036 Specification for Flat Glass2E 546 Test Method for Frost Point of Sealed InsulatingGlass Units3E 2190 Specification for Insulating Glass Unit Perfor-mance43. Terminology3.1 Definition of Terms:3.1.1 For defin
7、itions of terms found in this Standard, refer toStandard Terminology of Building Seals and Sealants, C 717,Terminology of Glass and Glass Products, C 162 and Termi-nology of Building Constructions, E 631.3.2 Definitions of Terms Specific to This Standard:3.2.1 frost/dew point, nthe temperature at wh
8、ich water,organic vapor, or other chemicals begin to appear on theinterior glass surface of a sealed insulating glass unit.4. Significance and Use4.1 This test method is intended to provide a means fortesting the performance of the sealing system and constructionof sealed insulating glass units.4.1.
9、1 Sealed insulating glass units tested in accordance withthis method may be suitable for structurally glazed applica-tions. However, factors such as sealant longevity when ex-posed to long term ultraviolet light and the structural propertiesof the sealant must be reviewed for these applications.4.1.
10、2 Sealed insulating glass units tested in accordance withthis method are not intended for continuous exposure to highrelative humidity conditions or long-term immersion in water.5. Test Specimens5.1 Each test specimen shall measure 355 6 6mmby5056 6mm(14614 in. by 20 614 in.) and shall be composedof
11、 two or three lites of clear, tinted or coated annealed,heat-strengthened, tempered or laminated glass.5.1.1 The double glazed test samples shall be fabricatedwith at least one lite of clear, uncoated glass. The triple glazedtest samples shall be fabricated with at least one outer lite ofclear, unco
12、ated glass. The other outer lite shall be fabricatedwith a glass which allows easy viewing of the frost point.5.1.2 The thickness of the glass lite shall be betweennominal 3.0 mm (18 in.) and a maximum of 6.0 mm (14 in.)nominal.55.1.3 The airspaces for units with either two or three lites ofglass sh
13、all be a minimum of 6.0 mm (14 in.) 6 0.8 mm (132in.).5.1.4 Triple pane units where the intermediate airspacedivider is a plastic film are acceptable.NOTE 1Overall unit thickness has some limits. Testing laboratoriesare usually able to accommodate 30 mm overall thickness. If testing1This test method
14、 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.Current edition approved March 10, 2002. Published April 2002.2Annual Book of ASTM Standards, Vol 15.02.3Annual Book
15、of ASTM Standards, Vol 04.11.4This test specification is under development by ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06. 22on Durability Performance of Building Constructions.5The construction of the test units is optional and shall be determi
16、ned by the testspecifier. When testing to Specification E 2190, the required unit construction isspecified in that document.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.thicker units, contact the testing laboratory prior to manufa
17、cturing toascertain their capabilities for testing thicker units.5.2 The thickness tolerance of the glass shall conform toSpecification C 1036.5.3 Each specimen shall be permanently and legibly markedwith the designation of the manufacturer, the date of fabrica-tion (month or quarter and year) and o
18、rientation intended in thefield (for units constructed with coated glass).5.4 At least twelve specimens of identical component ma-terials and construction shall be submitted.5.5 During all stages of exposure and storage, the units shallbe held in a vertical position with equal support to all panes a
19、ndno compression loading.5.6 Selection of units for testing shall be made at randomexcept for units damaged in transit. Damaged units shall not betested.5.7 Test samples representing units that will be gas filledshall be fabricated using the same hole sealing and gas fillingtechniques as those used
20、for manufacturing. For example, if agas-filling plug is used in manufacturing then it must be usedin the test units. The samples do not need to be filled with gasproviding that the gas is classified as inert. Test samplesrepresenting products that are normally filled with an inert gasin production,
21、may be submitted air filled for this testing aslong as they have been manufactured with the same techniquesas used in production.5.8 Test samples representing units that include tubes in-tended to be left open shall be fabricated with one tube. Thesetubes shall be left open during testing. Test samp
22、les represent-ing units that include tubes intended to be closed off aftershipping shall be fabricated with one tube. These tubes shall beclosed at the exterior end prior to testing.5.9 Test samples representing units that include muntinsshall be fabricated with muntins dividing the sample into nine
23、equal areas (3 by 3). See Fig. 1.6. Apparatus6.1 For Weather Cycle Phase:6.1.1 Weather Cycle Test Apparatus6The weather cycletest apparatus shall be essentially that shown in Figs. 2 and 3to provide the required test conditions indicated in Section 8.Modifications to this test apparatus are acceptab
24、le providingthat the required test conditions are met.6.1.1.1 Ultraviolet Light Source:NOTE 2Warning: Ultraviolet light sources used in this test methodare harmful, especially to the eyes. Appropriate protective measures mustbe observed.6.1.1.2 The source shall consist of two fluorescent blacklight
25、lamps, Type F72T12BL/HO7(Note 3), for each testspecimen located as shown in Fig. 2.NOTE 3Rated average life at 3 h per start: 12 000 h. Rated averagelife at 12 h per start: 18 000 h. Useful length: 1625 mm (64 in.). Wattage:85 W. Relative black light energy output is 190 % that of F40BL lamp.UVA 340
26、 nanometers.6.1.1.3 Each lamp must be replaced when its ultravioletlight intensity falls below 10 W/m2(1000 W/cm2) whenmeasured with a long-wave ultraviolet meter8in direct contactwith the lamp.6.1.2 Protect the accelerated weathering chamber fromoverheating and from overcooling with protective devi
27、ces.6.1.3 Equip the accelerated weather cycle chamber with oneor more sensors and a continuous temperature recording deviceplaced in an area that monitors the average temperature at anytime inside the chamber.6.2 For High Humidity Phase:6.2.1 High Humidity Test ChamberA chamber of conve-nient dimens
28、ions capable of maintaining 60 6 3C (140 65F) and 95 6 5 % relative humidity.6.2.2 The high humidity chamber shall be protected fromoverheating with a protective device.6.2.3 Equip high humidity chamber with one or moresensors and a continuous temperature-recording device placedin an area that monit
29、ors the average temperature in thechamber.7. Preparation of Test Specimens7.1 Uncleanable stain or scum may remain on the exteriorglass surface of the specimen after the accelerated weatheringtest. Measures shall be taken to have a clear view of the interiorglass surface for detection of frost. For
30、example, place a maskof plastic tape950 by 50 mm (2 by 2 in.) or larger, on thecentral region of both exterior glass surfaces before exposingthe unit to weathering conditions. Remove the mask forfrost/dew point measurement.7.2 The sealed insulating glass units shall be sealed aminimum of 4 weeks fro
31、m date of manufacture to allow for6The apparatus is a modification of the device developed by the Institute forResearch in Construction (IRC) of the National Research Council of Canada. Onemodification was to expose each test specimen to two black light lamps.7Available from General Electric Company
32、, Nela Park, Cleveland, OH 44112.8A suitable meter is the Black-Ray UV Meter with J221 sensor cell. Availablefrom Ultra-Violet Products, Inc., 2066 West 11th Street, Upland, CA 91786.9Scotch Plastic Tape #471 available from 3M Company, 3M Center, Commer-cial Office Supply Division, Bldg. 230-3 South
33、-17, St. Paul, MN 55101 has beenfound suitable for this purpose.FIG. 1 Schematic Drawing of Insulating Glass Unit with MuntinBarsE2188022stabilization before testing. The manufacturer has the option towaive this requirement.8. Procedure for Seal Durability8.1 Initial Frost/Dew Point Test:8.1.1 Deter
34、mine the initial frost/dew point on all airspaceson all units submitted using Test Method E 546 or equivalent.8.2 High Humidity Phase:8.2.1 Place the test specimens that were tested in accordancewith 8.1 in the high humidity test apparatus. Expose sixspecimens in the high-humidity test chamber at 60
35、 6 3C (1406 5F) and 95 6 5 % relative humidity. Arrange the specimensso that each specimen has at least 6 mm (14 in.) clearance allaround.Description: 1. Fog or mist spray; 2. Cooling coil; 3. Fluorescent black light lamp, F72T12BL/HO; 4. Heating coil; 5. Rubber pad; 6. Polystyrene insulation; 7. Ru
36、bberwasher; 8. Clamping device; 9. Test specimen; 10. Fan motor; 11. Air duct; 12. InsulationFIG. 2 Schematic Drawing of Typical Accelerated Weathering ApparatusFIG. 3 Location of Fluorescent Black Light Lamp Relative to the Test SpecimenE21880238.2.2 When the specified time period (days) has beenat
37、tained10, remove the test specimens. Allow the test specimensto equilibrate at 23 6 3C (73 6 5F) for not less than 24 h.Determine the frost/dew point in accordance with Test MethodE 546 or equivalent. For triple pane units, the frost/dew pointshall be determined for all airspaces. If liquid appears,
38、 recordthe temperature at which it occurs.8.3 Weather Cycle Phase:8.3.1 Place the six test specimens tested in accordance with8.1 and 8.2 in the weather cycle chamber. Mount the specimensso that one exterior surface of the specimen is exposed to theweather cycles and the other to room temperature (2
39、3 6 3C)(73 6 5F). Install all specimens as shown in Fig. 2, takingcare that no stress is induced in the test specimens by themethod of fastening.8.3.2 The test specimens shall be oriented in the weathercycle chamber with the number one surface facing the weatherchanges as it does in normal field exp
40、osure.8.3.3 CyclingEach cycle shall be 6 h 6 5 min andcomposed of the following test conditions (see Fig. 4):8.3.3.1 During the first 60 6 5 min, decrease the tempera-ture from room temperature to 29 6 3C (20 6 5F).8.3.3.2 Maintain temperature at 29 6 3C (20 6 5F) for1h6 5 min.8.3.3.3 Turn on heat a
41、nd allow temperature to rise from 296 3C (20 6 5F) to room temperature over a period of 60 65 min.8.3.3.4 Start ultraviolet lamps and over a time period of 606 5 min control the temperature rise from room temperature to60 6 3C (140 6 5F). At the beginning of this same 60 minperiod, turn on water or
42、mist supply. The interior of thechamber, at the test specimens, shall reach a minimum of 90 %relative humidity within this time period.8.3.3.5 Turn off the water or mist supply after 60 min.8.3.3.6 Maintain temperature at 60 6 3C (140 6 5F) andcontinue ultraviolet exposure for a period of 60 6 5 min
43、.8.3.3.7 Over a period of 60 6 5 min, decrease temperaturefrom 60 6 3C (140 6 5F) to room temperature, and continueultraviolet exposure. At the end of this period, turn offultraviolet lamp.8.3.3.8 When the specified time period (cycles) has beenattained11, remove the test specimens. Allow the test s
44、pecimensto equilibrate at 23 6 3C (73F 6 5F) for not less than 24 h.Determine the frost/dew point in accordance with Test MethodE 546 or equivalent. For triple pane units, the frost/dew pointshall be determined for all airspaces. If liquid appears, recordthe occurrence.9. Measurements and Observatio
45、ns9.1 Observe the following:9.1.1 Glass breakage.9.1.2 Any visible deposit in the airspace.9.2 Measure the following:9.2.1 Measure the frost/dew point of each insulating glassunit.10. Report10.1 Complete Description of Specimen Tested:10The amount of time under the high humidity test condition is op
46、tional and isat the discretion of the test specifier. When testing to Specification E 2190, theamount of time required is specified in that document.11The number of cycles is optional and is at the discretion of the test specifier.When testing to Specification E 2190, the number of cycles is specifi
47、ed in thatdocument.NOTEThis figure represents the ideal cycle described in this test method. Any temperature variation within the tolerance zone shown is acceptable.FIG. 4 Schematic Drawing of Each Cycle for Accelerated Weather Cycle TestE218802410.1.1 Dimensions of the test specimen (width by heigh
48、t)and overall thickness.10.1.2 Type and thickness of glass.10.1.3 Glass coatings and surface locations if applicable.10.1.4 Airspace thickness(es).10.1.5 Describe the spacer composition(s) and configura-tion(s).10.1.6 Describe the corner construction including the typeand number of corner keys.10.1.
49、7 Desiccant type and quantity, if provided.10.1.8 Presence and type of tube, if applicable.10.1.9 Presence and composition (if known) of muntin bars.10.1.10 Sealant type(s) and dimensions, if provided.10.1.11 Manufacturer and manufactured date (month orquarter, if known, and year).10.1.12 Date testing was started.10.2 Duration of Test:10.2.1 Duration of high humidity phase described in 8.2(number of days).10.2.2 Duration of accelerated weather cycle phase de-scribed in 8.3 (number of cycles).10.2.3 Duration of any additional testing including
