NEN EN 1279-2 : 2002

Foreword
1 Scope
2 Normative references
3 Terms and definitions, abbreviations and symbols
  3.1 Terms and definitions
  3.2 Abbreviations
  3.3 Symbols
4 Requirements
  4.1 Moisture penetration index
  4.2 Edge seal strength
  4.3 Gas leakage rate
5 Method of test
  5.1 Principle
  5.2 Climate conditions in cabinet
  5.3 Number, description and selection of the test
      specimens
  5.4 Procedure
6 Methods of measurement
  6.1 Measurement of dew point temperature
  6.2 Measurement of moisture content
      6.2.1 General
      6.2.2 Moisture content of desiccant in bulk
      6.2.3 Moisture content of desiccant incorporated
            in organic spacer
      6.2.4 Moisture content in insulating glass units
            without desiccant
7 Test report
Annex A (normative) - Reference method for dew point
        temperature measurement
    A.1 General
    A.2 Apparatus and materials
    A.3 Procedure
Annex B (normative) - Moisture content measurement
        according to the 950 degree C drying method
    B.1 Applicability
    B.2 Apparatus, materials and preparatory work
    B.3 Initial and final moisture content
    B.4 Standard moisture adsorption capacity
Annex C (normative) - Moisture content measurement
        according to the Karl Fischer method
    C.1 Applicability
    C.2 Apparatus, materials and preparatory work
    C.3 Initial and final moisture content
    C.4 Standard moisture adsorption capacity
Annex D (normative) - Establishing the standard moisture
        adsorption capacity of desiccants
    D.1 General
    D.2 Appropriate information
    D.3 Generally accepted values for desiccant in bulk
    D.4 Desiccant manufacturing
Bibliography

Specifies requirements for moisture penetration and the long term test method for insulating glass units and ensures by means of an adequate evaluation of conformity to this standard that over time: - energy savings are made because the U-value and solar factor do not change significantly; - health is preserved because sound reduction and vision do not change significantly; - safety is provided because mechanical resistance does not change significantly.