ISO 20492-1:2008
Glass in buildings - Insulating glass — Part 1: Durability of edge seals by climate tests
ISO 20492-1:2008 establishes two methods for testing the durability of edge seals of insulating glass units by means of climate tests. The two methods are designated as approach 1 for markets such as North America and approach 2 for markets such as Europe.
ISO 20492-1:2008 is applicable to pre-assembled, permanently sealed, insulating glass units with one or two airspaces, and with capillary tubes that are intentionally left open to equalize pressure inside the unit with the surrounding atmosphere.
ISO 20492-1:2008 is not applicable to sealed, insulating glass units that contain a spandrel glass coating.
ISO 20492-1:2008 does not apply to insulating glass units whose function is decorative only.
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Scope
Normative references
Terms and definitions
Symbols and abbreviated terms
Requirements
Approach 1 — Final frost/dew point
Approach 2 — Moisture-penetration index
Test methods
Approach 1
Principle
Test specimens
Apparatus
Procedure
Approach 2
Principle
Apparatus
Test specimens
Procedure
Methods of measurement
Measurement of frost/dew point temperature
Measurement of moisture content for Approach 2
General
Moisture content of desiccant in bulk
Moisture content of desiccant incorporated in organic spacer
Moisture content in insulating glass units without desiccant
Test report
Approach 1
Approach 2
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Related Information
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AS/NZS 2208:1996
Safety glazing materials in buildings
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AS/NZS 2208:1996 A1
Safety glazing materials in buildings: Amendment 1
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AS/NZS 4667:2000
Quality requirements for cut-to-size and processed glass
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BS 5051-1:1988
Bullet-resistant glazing, Specification for glazing for interior use
Scope
Normative references
Terms and definitions
Symbols and abbreviated terms
Requirements
Approach 1 — Final frost/dew point
Approach 2 — Moisture-penetration index
Test methods
Approach 1
Principle
Test specimens
Apparatus
Procedure
Approach 2
Principle
Apparatus
Test specimens
Procedure
Methods of measurement
Measurement of frost/dew point temperature
Measurement of moisture content for Approach 2
General
Moisture content of desiccant in bulk
Moisture content of desiccant incorporated in organic spacer
Moisture content in insulating glass units without desiccant
Test report
Approach 1
Approach 2