ASTM E2953-14(2020)e1
(Specification)Standard Specification for Evaluating Accelerated Aging Performance of Electrochromic Devices in Sealed Insulating Glass Units
Standard Specification for Evaluating Accelerated Aging Performance of Electrochromic Devices in Sealed Insulating Glass Units
ABSTRACT
This specification applies to all electrochromic (EC) glass whose visible light transmittance or near infrared light transmittance properties, or both, can be changed reversibly by the application or removal of an electrical voltage. It covers absorptive and reflective EC devices in preassembled permanently sealed insulting glass units with one or more cavities in which at least one lite contains an EC device (which may be in the form of a laminated lite or a single pane with coatings applied). This specification is also valid for EC devices in preassembled insulating glass units with capillary tubes intentionally left open, but not for other types of dynamic glass which do not solely require an electrical stimulus to change light transmittance such as photochromic and thermochromic glazings and hybrid active/passive chromogenics. This specification is applicable only to sealed insulating glass units that are constructed with glass and fabricated for vision glass areas for use in buildings, such as sliding doors, windows, skylights, and exterior wall systems.
SCOPE
1.1 This specification is applicable to all electrochromic (EC) glass whose visible light transmittance or near infrared light transmittance properties, or both, can be changed reversibly by the application or removal of an electrical voltage. This includes absorptive and reflective EC devices.
1.2 This specification does not apply to other types of dynamic glass which do not solely require an electrical stimulus to change light transmittance such as photochromic and thermochromic glazings and hybrid active/passive chromogenics.
1.3 This specification covers electrochromic devices in preassembled permanently sealed insulting glass units with one or more cavities in which at least one lite contains an EC device (which may be in the form of a laminated lite or a single pane with coatings applied). This specification is also applicable to EC devices in preassembled insulating glass units with capillary tubes intentionally left open. As such this specification also requires conformance to Specification E2190.
1.4 This specification is applicable only to sealed insulating glass units that are constructed with glass and fabricated for vision glass areas for use in buildings, such as sliding doors, windows, skylights, and exterior wall systems.
1.5 Qualification under this specification is intended to provide a basis for evaluating the aging performance of electrochromic devices in sealed insulating glass units.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 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.
General Information
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Standards Content (Sample)
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.
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Designation: E2953 −14 (Reapproved 2020)
Standard Specification for
Evaluating Accelerated Aging Performance of
Electrochromic Devices in Sealed Insulating Glass Units
This standard is issued under the fixed designation E2953; 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.
ε NOTE—Editorial changes were made in 6.2.1 and throughout in July 2020.
1. Scope priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This specification is applicable to all electrochromic
1.8 This international standard was developed in accor-
(EC) glass whose visible light transmittance or near infrared
dance with internationally recognized principles on standard-
light transmittance properties, or both, can be changed revers-
ization established in the Decision on Principles for the
ibly by the application or removal of an electrical voltage.This
Development of International Standards, Guides and Recom-
includes absorptive and reflective EC devices.
mendations issued by the World Trade Organization Technical
1.2 This specification does not apply to other types of
Barriers to Trade (TBT) Committee.
dynamic glass which do not solely require an electrical
2. Referenced Documents
stimulus to change light transmittance such as photochromic
and thermochromic glazings and hybrid active/passive chro-
2.1 ASTM Standards:
mogenics.
C162 Terminology of Glass and Glass Products
C717 Terminology of Building Seals and Sealants
1.3 This specification covers electrochromic devices in
E631 Terminology of Building Constructions
preassembledpermanentlysealedinsultingglassunitswithone
E2141 Test Method for Accelerated Aging of Electrochro-
or more cavities in which at least one lite contains an EC
mic Devices in Sealed Insulating Glass Units
device(whichmaybeintheformofalaminatedliteorasingle
E2190 Specification for Insulating Glass Unit Performance
pane with coatings applied). This specification is also appli-
and Evaluation
cable to EC devices in preassembled insulating glass units with
capillary tubes intentionally left open. As such this specifica-
3. Terminology
tion also requires conformance to Specification E2190.
3.1 Definitions—For definitions of terms found in this
1.4 This specification is applicable only to sealed insulating
specification, refer to Terminologies C162, C717, and E631.
glass units that are constructed with glass and fabricated for
3.2 Definitions of Terms Specific to This Standard:
vision glass areas for use in buildings, such as sliding doors,
3.2.1 dynamic range—the visible light transmittance range
windows, skylights, and exterior wall systems.
of an EC device, measured as the difference between the
1.5 Qualification under this specification is intended to
visible light transmittance of the highest transmittance state
provide a basis for evaluating the aging performance of
and the lowest transmittance state.
electrochromic devices in sealed insulating glass units.
3.2.2 electrochromic device (ECD), n—a combination of
1.6 The values stated in SI units are to be regarded as
materials that include materials in which the transmittance,
standard. No other units of measurement are included in this
reflection, and absorption properties can be altered, and other
standard.
layers, such as transparent conducting oxide (TCO) layers for
1.7 This standard does not purport to address all of the
altering the optical properties (for example, transmittance,
safety concerns, if any, associated with its use. It is the
reflectance, absorptance) of the device in response to an
responsibility of the user of this standard to establish appro-
applied electric field.
3.2.3 electrochromic (EC) glazing, n—in a prepared open-
ing of a building, the material installed which consists of an
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. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved July 1, 2020. Published July 2020. Originally approved contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
in 2014. Last previous edition approved in 2014 as E2953–14. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
E2953-14R20E01. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2953 − 14 (2020)
ECD with layer(s) of materials in which the optical properties MethodE2141.Theminimumtestspecimensizeis250mmby
can change in response to an applied electrical field, attendant 250 mm. Four specimens must be able to fit onto the test plane
materials, and one or more lites of glass. simultaneously.
3.2.4 highest transmittance state, n—also referred to as the
5.2 Test specimens for determining conformance to Speci-
clear state or bleached state, a descriptor for an EC glazing
fication E2190 shall be prepared as described in Specification
when it is in the transmittance state with the highest photopic
E2190 and shall be constructed with all EC coatings, electrical
specular light transmittance.
connectionsandsealpenetrations(suchasbusbars,connectors,
wires or electrical feedthroughs) in place in order to ensure the
3.2.5 lowest transmittance state, n—also referred to as the
impact of the electrical system integration on the aging of the
tinted state, dark state, or colored state, a descriptor for an EC
IGU is tested.
glazing when it is in the transmittance state with the lowest
photopic specular light transmittance.
6. Test Methods
3.2.6 sealed insulating glass unit, n—a preassembled unit,
6.1 Test Method E2141:
comprising lites of glass, which are sealed at the edges and
6.1.1 Follow Test Method E2141.
separated by dehydrated cavity(s), intended for vision areas of
6.1.2 The specimen test temperatures as measured at the
buildings. The unit is normally used for windows, window
center of the outer surface of the EC pane in the IGU shall be
walls, picture windows, sliding doors, patio doors, or other
85 °C 6 7 °C.
types of fenestration.
6.1.3 Take one set of visible light transmittance measure-
3.3 Acronyms:
ments in the highest and lowest transmittance states in the
3.3.1 ECD—electrochromic device
center of the glass. Do not measure the
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