Standard Test Method for Testing Resistance to Fogging in Insulating Glass Units

SIGNIFICANCE AND USE
This test method is intended to provide a means for testing the resistance to fogging in sealed insulating glass units.
This test method is also intended to provide a means for testing the resistance to fogging caused by components in the interior of the unit. These interior components include, but are not limited to, suspended or applied films, decorative components, muntins, and coatings.
SCOPE
1.1 This test method covers procedures for testing the resistance to fogging of preassembled permanently sealed insulating glass units or insulating glass units with capillary tubes intentionally left open.
1.2 This test method is applicable only to sealed insulating glass units that are constructed with glass.
1.3 This test method is applicable to both double-glazed and triple-glazed insulating glass units; for triple-glazed insulating glass units where both of the outer lites are glass and the inner lite is either glass or a suspended film.
1.4 The unit construction used in this test method contains construction details that are essential components of the test. Different types of glass, different glass thicknesses and different airspace sizes may affect the test results.
1.5 This test method is not applicable to sealed insulating glass units containing a spandrel glass coating due to testing limitations.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Publication Date
31-Oct-2010
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ASTM E2189-10e1 - Standard Test Method for Testing Resistance to Fogging in Insulating Glass Units
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E2189 − 10
Standard Test Method for
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Testing Resistance to Fogging in Insulating Glass Units
This standard is issued under the fixed designation E2189; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
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ε NOTE—6.1.6, 6.1.7, and 6.2.1 were corrected editorially in March 2012.
1. Scope C717 Terminology of Building Seals and Sealants
E631 Terminology of Building Constructions
1.1 This test method covers procedures for testing the
E2188 Test Method for Insulating Glass Unit Performance
resistance to fogging of preassembled permanently sealed
E2190 Specification for Insulating Glass Unit Performance
insulating glass units or insulating glass units with capillary
and Evaluation
tubes intentionally left open.
1.2 This test method is applicable only to sealed insulating
3. Terminology
glass units that are constructed with glass.
3.1 Definition of Terms:
1.3 This test method is applicable to both double-glazed and
3.1.1 For definitions of terms found in the standard, refer to
triple-glazed insulating glass units; for triple-glazed insulating
TerminologyC717,TerminologyC162andTerminologyE631.
glass units where both of the outer lites are glass and the inner
3.2 Definitions of Terms Specific to This Standard:
lite is either glass or a suspended film.
3.2.1 fog, n—visible deposits present after testing in accor-
1.4 The unit construction used in this test method contains
dance with Section 8 that were not present prior to testing. Fog
construction details that are essential components of the test.
doesnotincludedefectsinaglasscoatingortheglasssubstrate
Different types of glass, different glass thicknesses and differ-
when examined prior to testing.
ent airspace sizes may affect the test results.
4. Significance and Use
1.5 This test method is not applicable to sealed insulating
4.1 This test method is intended to provide a means for
glass units containing a spandrel glass coating due to testing
testingtheresistancetofogginginsealedinsulatingglassunits.
limitations.
1.6 The values stated in SI units are to be regarded as 4.2 This test method is also intended to provide a means for
testing the resistance to fogging caused by components in the
standard. No other units of measurement are included in this
standard. interior of the unit. These interior components include, but are
not limited to, suspended or applied films, decorative
1.7 This standard does not purport to address all of the
components, muntins, and coatings.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Test Specimens
priate safety and health practices and determine the applica-
5.1 Each test specimen shall be manufactured in accordance
bility of regulatory limitations prior to use.
with Test Method E2188, Section 5.
2. Referenced Documents
5.2 For test specimens containing muntin bars, the speci-
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mens shall be fabricated with the muntin bars dividing the
2.1 ASTM Standards:
C162 Terminology of Glass and Glass Products specimens into nine equal areas (3 by 3). See Fig. 1.
5.3 Viewing of the fog shall not be compromised by any
internal component.
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This test method is under the jurisdiction of ASTM Committee E06 on
5.4 For double-glazed units, at least three specimens of
Performance of Buildings and is the direct responsibility of Subcommittee E06.22
on Durability Performance of Building Constructions.
identical component materials and construction shall be sub-
Current edition approved Nov. 1, 2010. Published November 2010. Originally
mitted.
approved in 2002. Last previous editions approved in 2002 as E2189 – 02. DOI:
10.1520/E2189-10E01.
5.5 For triple-glazed units, at least five specimens of iden-
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tical component materials and construction shall be submitted.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
For these units, the manufacturer shall specify the exterior
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. surface.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2189 − 10
6.1.8 Alternatively, an electric chilling apparatus shall be
used to control the cooling plate.
6.2 Ultraviolet Light Source:
6.2.1 Warning—Ultraviolet light sources used in this test
method are harmful to the human body, especially to the eyes.
Appropriate protective measures must be observed.The source
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