ASTM E2190-19

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it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
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Designation: E2190 − 10 E2190 − 19
Standard Specification for
Insulating Glass Unit Performance and Evaluation
This standard is issued under the fixed designation E2190; 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.
1. Scope
1.1 This specification covers preassembled permanently sealed insulating glass units with one or two airspacescavities and
preassembled insulating glass (IG) units with capillary tubes intentionally left open.open or closed.
1.2 This specification is applicable only to sealed insulating glass units that are constructed with glass.glass or suspended film.
1.3 This specification 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 innermiddle lite is either glass or a suspended film.
1.4 The qualification of test specimens is based on frost/dew point and on the absence of fog after the specified test durations.
1.5 The qualification of argon gas filled gas-filled test specimens is based on the qualifications in 1.3 and maintaining the
specified argon gas amounts before and after testing to Test Method E2188.
1.6 Qualification under this specification is intended to provide a basis for evaluating the durability of sealed insulating glass
units.
1.7 This specification is not applicable to sealed insulating glass units containing a spandrel glass coating due to test method
limitations.
1.8 This specification does not cover other physical requirements such as appearance, thermophysical properties, heat and light
transmission, and glass displacement.
NOTE 1—Sealed insulating Insulating glass units qualified according to this specification are not necessarily suitable for structurally glazed applications.
Factors such as sealant longevity when exposed to long term ultraviolet light and the structural properties of the sealant must be reviewed for these
applications. For more information on the requirements for structural sealant glazing applications, refer to Specification C1369, Guide C1249, and Test
Method C1265.
1.9 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this The values
given in parentheses after SI units are provided for information only and are not considered standard.
1.10 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.11 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
C162 Terminology of Glass and Glass Products
C717 Terminology of Building Seals and Sealants
C1036 Specification for Flat Glass
C1249 Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
C1265 Test Method for Determining the Tensile Properties of an Insulating Glass Edge Seal for Structural Glazing Applications
C1369 Specification for Secondary Edge Sealants for Structurally Glazed Insulating Glass Units
This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.22 on Durability
Performance of Building Constructions.
Current edition approved Nov. 1, 2010April 1, 2019. Published November 2010May 2019. Originally approved in 2002. Last previous edition approved in 20082010 as
E2190 – 08.E2190–10. DOI: 10.1520/E2190-10.10.1520/E2190–19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E2190 − 19
E546 Test Method for Frost/Dew Point of Sealed Insulating Glass Units
E631 Terminology of Building Constructions
E2188 Test Method for Insulating Glass Unit Performance
E2189 Test Method for Testing Resistance to Fogging in Insulating Glass Units
E2269 Test Method for Determining Argon Concentration in Sealed Insulating Glass Units using Gas Chromatography
E2649 Test Method for Determining Argon Concentration in Sealed Insulating Glass Units Using Spark Emission Spectroscopy
E2190 − 19
3. Terminology
3.1 Definition of Terms:
3.1.1 For definitions of terms found in this Specification, refer to Terminologies C162, C717, and E631.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 baseline set, n—a set of specimens, submitted for testing to this specification, all fabricated at the same time, with the same
insulating glass construction (same sealants, same spacer, same glass thickness, same cavity thickness, etc.) but without internal
components.
3.2.2 cavity, n—the space or gap between lites of an insulating glass unit. Cavities may be air-filled, or inert gas-filled.
3.2.3 sealed insulating glass unit, n—a preassembled unit, comprising lites of glass, which are sealed at the edges and separated
by dehydrated space(s), intended for vision areas of buildings. The unit is normally used for windows, window walls, picture
windows, sliding doors, patio doors, skylights, or other types of fenestration.
3.2.4 internal components, n—the components in an insulating glass unit that do not contribute to water vapor control or gas
retention of the cavity. Internal components may be decorative such as false muntins or brass caming, or may be functional such
as internal blinds.
4. Performance Requirements
4.1 To pass the specification for Test Method E2188:
4.1.1 Six units shall complete all testing unbroken. These units shall have frost/dew points determined and reported. The final
frost/dew points shall be –40°C or colder when measured in accordance with Test Method E546 or equivalent.
4.2 To pass the specification for Test Method E2189:
4.2.1 The units that complete Test Method E2189 shall have no fog visible after testing.
4.1 Baseline Set Performance—To pass the specification for argon filled units:A baseline set (with no internal components) of
IG unit specimens, fabricated at the same time, shall be submitted and meet the following:
4.1.1 The average initial argon gas concentration of the specimens prior to testing to Six specimens from the baseline set shall
be tested to Test Method E2188 shall be a minimum of 90 %. No individual test specimen shall have an argon concentration of
less than 50 %., with no final frost/dew point warmer than –40 °C (40 °F).
4.1.2 Two specimens (if double-glazed) or four specimens (if triple-glazed) from the baseline set shall be tested to Test Method
E2189 with no volatile fog visible after testing.
4.1.3 The If argon filling is specified, the same six specimens in 4.1.1average shall also have an initial average argon
concentration of 90 % or greater prior to testing to Test Method E2188final argon gas , AND the final average argon concentration
of the same six specimens shall be 80 % or greater after testing to Test Method E2188 shall be a minimum of 80 %. . No individual
test specimen shall have an argon concentration of less than 50 %.
4.2 Fog—Internal Component Performance—No fog shall be visible after testing in accordance with If specifying internal
components, additional testing to Test Method E2189. is required. This testing is supplementary and separate from the baseline set.
It does not affect the results of the baseline set.
4.2.1 Two specimens (if double-glazed) or four specimens (if triple-glazed) made with internal components, using the exact
same sealing system, geometry, and glass construction as the baseline set in 4.1, shall be tested to Test Method E2189 with no
volatile fog visible after testing.
5. Test Specimens
5.1 Each test specimen shall measure 355 6 6 mm by 505 6 6 mm and shall be composed of two or three lites of
glass.Specimen Size:
1 1
5.1.1 Each test specimen shall measure 355 6 6 mm by 505 6 6 mm (14 6 ⁄4 in. by 20 6 ⁄4 in.).
5.2 The glass and airspace thickness(es) for qualification under this specification shall be 4 mm glass with 12 mm airspace or
5 mm glass with 6 mm airspace.
5.3 For triple-glazed units, 4 mm glass with 6 mm airspaces shall be used.
5.2 If the required glass constructions in 5.2 and 5.3 are not available form the submitting manufacturer, then thicker glass or
wider airspaces, or both shall be allowed. (For example, using 6 mm glass with 12 mm airspace.) This may result in a more rigorous
test.Glass Construction:
5 1 3
5.2.1 For double-glazed specimens: 4 mm ( ⁄32 in.) nominal glass with 12 mm ( ⁄2 in.) cavity, or 5 mm ( ⁄16 in. ) nominal glass
with 6 mm ( ⁄4 in.) cavity.
5 1
5.2.2 For triple-glazed specimens: 4 mm ( ⁄32 in.) glass with 6 mm ( ⁄4 in.) cavities.
5.2.3 If the required glass constructions in 5.2.1 and 5.2.2 are not available from the submitting manufacturer, then thicker glass
or wider cavities, or both, shall be allowed. (For example, using 6 mm glass with 12 mm cavity.) This may result in a more rigorous
test.
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5.2.4 All of the values noted in this section are nominal.
5.2.5 Tolerance of glass thickness shall be in accordance with Specification C1036.
5.2.6 Cavity tolerance shall be 60.8 mm ( ⁄32 in.).
5.2.7 There shall be no internal components in the baseline set.
5.5 All of the values in 5.2 through 5.4 are nominal.
5.5.1 Tolerance of glass thickness shall be in accordance with Specification C1036.
5.5.2 Airspace tolerance(s) shall be 60.8 mm.
5.6 If specifying internal components, then these components shall be present in the test specimens made for testing to Test
Method E2189.
5.7 Twelve double-glazed test specimens shall be submitted when testing to this specification. If specifying internal
components, three of these specimens shall contain those components and shall be designated for testing to Test Method E2189.
5.8 Fourteen triple-glazed test specimens shall be submitted when testing to this specification. If specifying internal
components, five of these test specimens shall contain those components and shall be designated for testing to Test Method E2189.
5.3 If specifying argon gas fill:Glass Coatings (if used):
5.3.1 The test specimens Coatings shall be argon filled using the same gas filling techniques as those used for manufacturing-
.included in the specimens, if the manufacturer uses coatings in normal production.
5.3.2 For double glazed, argon gas filled specimens:double-glazing specimens, one lite of the specimen shall be clear and the
other shall have a coating applied to the inner surface.
5.9.2.1 Nine of the submitted test specimens shall be designated for testing with Test Methods E2188 and E2649. These
specimens shall not contain any internal components s
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