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ASTM E774-97

(Specification)

Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units (Withdrawn 2006)

Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units (Withdrawn 2006)

SCOPE
1.1 This specification is applicable to those sealed insulating glass units, with one or two airspaces, which are preassembled and sealed with organic sealant(s).
1.2 This specification is primarily intended to evaluate the test specimens by accelerating the water vapor transmission through the sealing systems into the desiccated air space(s). The classification of test specimens is based on the water vapor content remaining in the air space(s) after test.
1.3 Qualification under this specification is intended to provide a basis for judgment of acceptability of sealed insulating glass units.
1.4 The correlation between actual performance of the in-service units and the response to these tests has not been established because of insufficient data. Such correlation will be established as laboratory and field data are collected and analyzed.
1.5 This specification is not applicable to units that are constructed from vision materials other than glass.
1.6 This specification does not cover other physical requirements such as appearance, thermophysical properties, heat and light transmission, and glass displacement.  Note 1-Sealed insulating glass units classified according to this specification are not necessarily suitable for structurally glazed applications. Factors such as sealant longevity to long term direct ultraviolet light exposure and sealant tensile strength must be reviewed for these applications.
WITHDRAWN RATIONALE
This specification is applicable to those sealed insulating glass units, with one or two airspaces.
Formerly under the jurisdiction of Committee E06 on Building Constructions, this specification was withdrawn in February 2006. This specification was withdrawn for not being revised within an 8-year period.

General Information

Status
Withdrawn
Publication Date
09-Jun-1997
Withdrawal Date
12-Feb-2006
ICS
81.040.20 - Glass in building
Technical Committee
E06 - Performance of Buildings
Drafting Committee
E06.22 - Durability Performance of Building Constructions
Current Stage
Ref Project

Relations

Referred By
ASTM E576-14(2020) - Standard Test Method for Frost/Dew Point of Sealed Insulating Glass Units in the Vertical Position
Effective Date
10-Jun-1997
Referred By
ASTM E631-15 - Standard Terminology of Building Constructions
Effective Date
10-Jun-1997

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ASTM E774-97 - Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units (Withdrawn 2006)ASTM E774-97 - Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units (Withdrawn 2006)
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ASTM E774-97 - Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units (Withdrawn 2006)
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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
An American National Standard
Designation: E 774 – 97
Standard Specification for
the Classification of the Durability of Sealed Insulating
1
Glass Units
This standard is issued under the fixed designation E774; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 sealed insulating glass unit—a preassembled unit,
comprising sealed panes of glass separated by dehydrated
1.1 Thisspecificationisapplicabletothosesealedinsulating
space(s), intended for vision areas of buildings. The unit is
glass units, with one or two airspaces.
normally used for windows, window walls, picture windows,
1.2 The classification of test specimens is based on frost or
sliding doors, patio doors, or other types of windows or doors.
chemical dew point after the specified test duration(s).
1.3 Qualification under this specification is intended to
4. Classification
provide a basis for the classification of the durability of sealed
4.1 Sealed insulating glass units tested in accordance with
insulating glass units. SIGMA field correlation studies started
this specification shall be classified into one of three classes
in 1980 show that units that have achieved a Level A
basedonresponsetothetestsandqualificationrequirementsas
classification have less than 1% field failure rate in ten years
shown in Table 1.
provided the glazing system weeps water away from contact
with the unit edge seal. Class C and CB tested units have
5. Performance Requirements
significantly higher field failure rates in ten years. SIGMA
2 5.1 Class C—There shall be no frost or chemical dew point
continues to gather correlation data.
of each specimen when measured at a temperature of−34°C
1.4 This specification is not applicable to units that are
(−30°F) in accordance with Test Method E546.
constructed from vision materials other than glass.
5.2 Class B—There shall be no frost or chemical dew point
1.5 Thisspecificationdoesnotcoverotherphysicalrequire-
when measured at a temperature of−29°C (−20°F) in accor-
ments such as appearance, thermophysical properties, heat and
dance with Test Method E546.
light transmission, and glass displacement.
5.3 Class A—There shall be no frost or chemical dew point
NOTE 1—Sealed insulating glass units classified according to this
when measured at a temperature of−29°C (−20°F) in accor-
specification are not necessarily suitable for structurally glazed applica-
dance with Test Method E546.
tions.Factorssuchassealantlongevitytolongtermdirectultravioletlight
5.4 Fog—Nofogshallbevisibleaftertestinginaccordance
exposure and sealant tensile strength must be reviewed for these applica-
with Test Method E1887.
tions.
6. Test Specimens
2. Referenced Documents
6.1 Specimen design and construction for accelerated
2.1 ASTM Standards:
weathering tests shall be established by Test Method E773.
E546 Test Method for Frost Point of Sealed Insulating
3
Glass Units
7. Test Methods
E773 Test Method for Accelerated Weathering of Sealed
3 7.1 Classify the sealed insulating glass units by following
Insulating Glass Units
3
Test Method E773 in accordance with Table 1 of this specifi-
E1887 Test Method for Fog Determination
cation.
3. Terminology
7.1.1 Accelerated Weathering Test:
7.1.1.1 Test six randomly selected test specimens for dura-
3.1 Definition:
tions as shown in Table 1, Class C in accordance with Test
Method E773.
1
This specification is under the jurisdiction of ASTM Committee E-6 on
7.1.1.2 IfthetestspecimensqualifyforClassCasdescribed
Performance of Buildings and is the direct responsibility of Subcommittee E06.22
inSection5ofthisspecification,theymaybetestedfurtherfor
on Durability Performance of Building Constructions.
Current edition approved June 10, 1997. Published August 1997. Originally
durations as shown inTable 1, Class B. Place the specimens in
published as E774–81. Last previous edition E774–92.
the test racks so that the bearing edge and the weathering or
2
AvailablefromSIGMA,111EastWackerDrive,Suite600,Chicago,IL60601.
exposed side remain the same as tested in previous class.
3
Annual Book of ASTM Standards, Vol 04.11.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E 774
TABLE 1 Classification and Physical Requirements for Seal Durability Test Method E 773
Accelerated Weathering Test Fogging Test
Duration of Test
Record
Initial Frost
Final
Classification
High Hu-
Point and
Accelerated Qualification of
of Specimen
Number of midity Number of Duration of Qualifi-
Chemical Dew
Weather Cycle Frost Point and
A
Specimens Test,
...

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5.1 Use of this practice assumes:  
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SCOPE
1.1 This practice covers a procedure to determine the resistance of annealed architectural flat glass to thermally induced stresses caused by exposure to sun and shadows for a specified probability of breakage (Pb). Proper use of this procedure is intended to reduce the possibility of thermal breakage of annealed glass in buildings.  
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1.3 This practice applies to monolithic and laminated glass of rectangular shape and assumes that all glass edges are simply supported.  
1.4 This practice applies only to annealed flat soda-lime silica glass with clean cut, seamed, flat ground, or ground and polished edges that are free from damage. The glass may be clear or tinted as well as coated (not including coatings that reduce emissivity of the glass).  
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1.6 This practice does not address uniform loads such as wind and snow loads, safety requirements, fire, or impact resistance.  
1.7 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. For conversion of quantities in various systems of measurements to SI units, refer to IEEE/ASTM SI-10.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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Standard Specification for Evaluating Accelerated Aging Performance of Electrochromic Devices in Sealed Insulating Glass Units

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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.
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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.  
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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.

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5.3 A thorough understanding of the variations of the strength of glass and the nature of loading is required to interpret results of this test method.  
5.4 The proper use of this test method requires a knowledge of the principles of pressure, deflection, and strain measurement.
SCOPE
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Standard Test Method for Accelerated Aging of Environmentally Controlled Dynamic Glazing

SIGNIFICANCE AND USE
4.1 ECDG perform a number of important functions in a building envelope including: reducing the solar energy heat gain; providing a variable visual connection with the outside world; enhancing human comfort (heat gain), security, 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 assessing the relative serviceability of ECDGs, as described in Section 1.  
4.3 The test method is intended to simulate in-service use and accelerate aging of the environmentally controlled dynamic glazings.  
4.4 Results from these tests cannot be used to predict the performance over 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.  
4.5 The procedure in this test method includes environmental test parameters that are typically used in weatherability tests by standards organizations and are realistic for the intended use of large-area ECDG units.
SCOPE
1.1 This test method covers the accelerated aging and monitoring of the time-dependent performance of environmentally controlled dynamic glazings such as thermochromic (TC) thermotropic, photochromic glazings. and combinations thereof.  
1.2 The test method is applicable only for environmentally controlled dynamic glazings. These glazings may be either monolithic glass, monolithic laminated glass, or sealed insulating glass units fabricated for use in buildings, such as exterior doors, windows, skylights, and wall systems.  
1.3 During use, the environmentally controlled dynamic glazings tested according to this method are exposed to environmental conditions, including solar radiation and are employed to control the amount of transmitted radiation by absorption and reflection and thus, limit the amount of solar radiation that is transmitted into a building.  
1.4 The test method is not applicable to electronically controlled chromogenic devices, such as electrochromic devices.  
1.5 The test method is not applicable to environmentally controlled dynamic 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.  
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.8 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.9 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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ASTM
ASTM E3120-19(Specification)
Standard Specification for Evaluating Accelerated Aging Performance of Environmentally Controlled Dynamic Glazings

ABSTRACT
This specification provides a basis for evaluating the accelerated aging performance of environmentally controlled dynamic glazings (ECDG) in monolithic glass, monolithic laminated glass, or pre-assembled, permanently 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. ECDG is the glazing material installed in a prepared opening of a building whose visible light transmittance or near infrared light transmittance properties, or both, can be changed reversibly by exposure to changing environmental conditions such as temperature and sunlight intensity. This specification also covers ECDG devices in pre-assembled insulating glass units with capillary tubes intentionally left open, but does not apply to other types of dynamic glazing which require an electrical stimulus to change light transmittance, such as electrochromic glazings.
This specification prescribes the performance requirements and test methods for ECDG, as well as specimen preparation, qualification, and reporting requirements.
SCOPE
1.1 This specification is applicable to environmentally controlled dynamic glazings (ECDG) whose visible light transmittance or near infrared light transmittance properties, or both, can be changed reversibly by exposure to changing environmental conditions such as temperature and sunlight intensity. This includes thermochromic and thermotropic glazing, but currently excludes photochromic glazings as neither Test Method E3119 nor this specification provide a procedure to access multiple states of photochromic glazing specimens.  
1.2 This specification does not apply to other types of dynamic glazing which require an electrical stimulus to change light transmittance, such as electrochromic glazings.  
1.3 This specification covers environmentally controlled dynamic glazing (ECDG) in monolithic glass, monolithic laminated glass, or pre-assembled, permanently sealed insulating glass units with one or more cavities in which at least one lite is an ECDG (which may be in the form of a laminated lite or a single pane with coatings or film applied). This specification is also applicable to ECDG devices in pre-assembled insulating glass units with capillary tubes intentionally left open. As applicable, this specification also requires conformance to Specification E2190.  
1.4 This specification is applicable only to monolithic glass, monolithic laminated glass, and 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 environmentally controlled dynamic glazing in monolithic glass, monolithic laminated glass, and 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.

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