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Norm

ÖNORM EN 12429

Issue date: 1998 12 01

Thermal insulating products for building applications - Conditioning to moisture equilibrium under specified temperature and humidity conditions

This European Standard specifies equipment and procedures to condition a thermal insulating product to equilibrium moisture content at (23 +- 2 C) and (50 +- 5) % relativ...
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This European Standard specifies equipment and procedures to condition a thermal insulating product to equilibrium moisture content at (23 +- 2 C) and (50 +- 5) % relative humidity. The standard is also applicable to thermal insulating products with moulded skins but is not normally relevant for faced products or for products with other surface treatments. NOTE 1 : The normally specified moisture content is the result of the equilibrium between the atmosphere and the product at (23 +- 2) C and (50 +- 5) % relative humidity. The standard may also be used if a product has to be conditioned to other relative humidities. NOTE 2: The moisture equilibrium may - due to hysteresis effects - differ depending on whether the equilibrium has been reached by absorption or by desorption. In addition perfect equilibrium may require a very long time to be reached. Therefore it is necessary to accept equilibrium within a certain accuracy. NOTE 3: For products which do not absorb moisture, conditioning is not needed. It should nevertheless be ensured that there is no water on the surface before testing.
ÖNORM EN 12429
1998 12 01
Thermal insulating products for building applications - Conditioning to moisture equilibrium under s...
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Issue date : 1997 09 01
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ÖNORM EN ISO 12571
Issue date : 2000 07 01
Hygrothermal performance of building materials and products - Determination of hygroscopic sorption properties (ISO 12571:2000)