ASTM E2141-14

Standard Test Method for Accelerated Aging of Electrochromic Devices in Sealed Insulating Glass Units

SIGNIFICANCE AND USE
4.1 EC glazings perform a number of important functions in a building envelope including: minimizing the solar energy heat gain; providing for passive solar energy gain; controlling a variable visual connection with the outside world; enhancing human comfort (heat gain), security, ventilation, illumination, and glare control; providing for architectural expression, and (possibly) improving acoustical performance. It is therefore important to understand the relative serviceability of these glazings.  
4.2 This test method is intended to provide a means for evaluating the relative serviceability of EC Glazings as described in Section 1.  
4.3 The procedures in this test method include (a) rapid but realistic current-voltage cycling tests emphasizing the electrical properties, and (b) environmental test parameters that are typically used in weatherability tests by standards organizations and are realistic for the intended use of large-area EC IGUs.
SCOPE
1.1 This test method covers the accelerated aging of electrochromic devices (ECD) integrated in insulating glass units.  
1.2 The test method is applicable for any electrochromic device incorporated into sealed insulating glass units (IGUs) fabricated for vision glass (superstrate and substrate) areas for use in buildings, such as sliding doors, windows, skylights, and exterior wall systems. The layers used for constructing the EC device and electrochromically changing the optical properties may be inorganic or organic materials.  
1.3 The electrochromic (EC) glazings used in this test method are exposed under use conditions to solar radiation and are deployed to control the amount of radiation by absorption and reflection and thus, limit the solar heat gain and amount of solar radiation that is transmitted into the building.  
1.4 The test method is not applicable to other chromogenic devices, such as, photochromic and thermochromic devices which do not respond to electrical stimulus.  
1.5 The test method is not applicable to electrochromic (EC) glazings that are constructed from superstrate or substrate materials other than glass.  
1.6 The test method referenced herein is a laboratory test conducted under specified conditions. The test is intended to simulate and, in some cases, to also accelerate actual in-service use of the electrochromic windows. Results from these tests cannot be used to predict the performance with time of in-service units unless actual corresponding in-service tests have been conducted and appropriate analyses have been conducted to show how performance can be predicted from the accelerated aging tests.  
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7.1 Exception—Inch-pound units are used 7.6.2.  
1.8 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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2014
• ICS: 81.040.20 - Glass in building
• Technical Committee: E06 - Performance of Buildings
• Drafting Committee: E06.22 - Durability Performance of Building Constructions

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2141 − 14
Standard Test Method for
Accelerated Aging of Electrochromic Devices in Sealed
1
Insulating Glass Units
This standard is issued under the fixed designation E2141; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This test method covers the accelerated aging of elec-
responsibility of the user of this standard to establish appro-
trochromic devices (ECD) integrated in insulating glass units.
priate safety and health practices and determine the applica-
1.2 The test method is applicable for any electrochromic
bility of regulatory limitations prior to use.
device incorporated into sealed insulating glass units (IGUs)
fabricated for vision glass (superstrate and substrate) areas for
2. Referenced Documents
useinbuildings,suchasslidingdoors,windows,skylights,and
2
2.1 ASTM Standards:
exterior wall systems. The layers used for constructing the EC
C168Terminology Relating to Thermal Insulation
device and electrochromically changing the optical properties
E177Practice for Use of the Terms Precision and Bias in
may be inorganic or organic materials.
ASTM Test Methods
1.3 The electrochromic (EC) glazings used in this test
E631Terminology of Building Constructions
methodareexposedunderuseconditionstosolarradiationand
E691Practice for Conducting an Interlaboratory Study to
are deployed to control the amount of radiation by absorption
Determine the Precision of a Test Method
and reflection and thus, limit the solar heat gain and amount of
E2953Specification for Evaluating Accelerated Aging Per-
solar radiation that is transmitted into the building.
formance of Electrochromic Devices in Sealed Insulating
1.4 The test method is not applicable to other chromogenic
Glass Units
devices, such as, photochromic and thermochromic devices G113Terminology Relating to Natural andArtificial Weath-
which do not respond to electrical stimulus.
ering Tests of Nonmetallic Materials
G173TablesforReferenceSolarSpectralIrradiances:Direct
1.5 Thetestmethodisnotapplicabletoelectrochromic(EC)
Normal and Hemispherical on 37° Tilted Surface
glazings that are constructed from superstrate or substrate
3
materials other than glass.
2.2 ISO Standard:
ISO 9050 Glass in building - Determination of light
1.6 The test method referenced herein is a laboratory test
transmittance,solardirecttransmittance,totalsolarenergy
conducted under specified conditions. The test is intended to
transmittance, ultraviolet transmittance and related glaz-
simulateand,insomecases,toalsoaccelerateactualin-service
ing factors
use of the electrochromic windows. Results from these tests
cannot be used to predict the performance with time of
3. Terminology
in-service units unless actual corresponding in-service tests
have been conducted and appropriate analyses have been
3.1 Definitions—Fordefinitionsofgeneraltermsusedinthis
conductedtoshowhowperformancecanbepredictedfromthe
testmethodrelatedtobuildingconstruction,thermalinsulating
accelerated aging tests.
materials and natural and artificial weathering tests for nonme-
tallic materials, refer to Terminologies E631, C168 and G113,
1.7 The values stated in SI units are to be regarded as
respectively.
standard. No other units of measurement are included in this
standard.
3.2 Definitions of Terms Specific to This Standard:
1.7.1 Exception—Inch-pound units are used 7.6.2.
1 2
This test method is under the jurisdiction of ASTM Committee E06 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Performance of Buildings and is the direct responsibility of Subcommittee E06.22 contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
on Durability Performance of Building Constructions. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 1, 2014. Published February 2015. Originally the ASTM website.
3
approved in 2001. Last previous edition approved in 2012 as E2141–12. DOI: Available from International Organization for Standardization (ISO), 1, ch. de
10.1520/E2141-14. la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E2141 − 14
3.2.1 accelerated aging test, n—a test in which the rate of highest transmittance state, or a transition from the lowest
degradation of building components or materials is
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
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
of the standard as published by ASTM is to be considered the official document.
Designation: E2141 − 12 E2141 − 14
Standard Test MethodsMethod for
Assessing the Durability of Absorptive Electrochromic
Coatings onAccelerated Aging of Electrochromic Devices in
1
Sealed Insulating Glass Units
This standard is issued under the fixed designation E2141; 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 TheseThis test methods covermethod covers the accelerated aging and monitoring of the time-dependent performance of
electrochromic glazings. Cross sections of typical electrochromic windows are shown in which devices have four or five-layers
of coatings that include the two or three active layers sandwiched between transparent conducting electrodes (TCOs, see Section
of electrochromic devices (ECD) integrated in insulating glass units.3).
1.2 The test methods aremethod is applicable only for multilayered (two or more coatings between the TCOs) absorptive
electrochromic coatings on for any electrochromic device incorporated into sealed insulating glass (IG) units (IGUs) fabricated for
vision glass (superstrate and substrate) areas for use in buildings, such as sliding doors, windows, skylights, and exterior wall
systems. The multilayerslayers used for constructing the EC device and electrochromically changing the optical properties may be
inorganic or organic materials between the superstrate and substrate.materials.
1.3 The electrochromic coatings (EC) glazings used in this test method are exposed under use conditions to solar radiation and
are deployed to control the amount of radiation by absorption and reflection and thus, limit the solar heat gain and amount of solar
radiation that is transmitted into the building.
1.4 The test methods aremethod is not applicable to other chromogenic devices, such as, photochromic and thermochromic
devices. devices which do not respond to electrical stimulus.
1.5 The test methods are not applicable to electrochromic devices consisting of three layers of coatings including the two
transparent conducting electrodes (see Section 3).
1.5 The test methods aremethod is not applicable to electrochromic windows (EC) glazings that are constructed from superstrate
or substrate materials other than glass.
1.6 The test methodsmethod referenced herein are is a laboratory teststest conducted under specified conditions. These tests
areThe test is intended to simulate and, in some cases, to also accelerate actual in-service use of the electrochromic windows.
Results from these tests cannot be used to predict the performance with time of in-service units unless actual corresponding
in-service tests have been conducted and appropriate analyses have been conducted to show how performance can be predicted
from the accelerated aging tests.
1.7 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
1.7.1 Exception—Inch-pound units are used 7.6.2.
1.8 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
1
This test method 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. 15, 2012Dec. 1, 2014. Published January 2013February 2015. Originally approved in 2001. Last previous edition approved in 20062012
as E2141 – 06.E2141 – 12. DOI: 10.1520/E2141-12.10.1520/E2141-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
1

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E2141 − 14
C1199E177 Test Method for Measuring the Steady-State Thermal Transmittance of Fenestration Systems Using Hot Box
Practice for Use of the Terms Precision
...