Norm

NEN-ISO 20393:2008 en

Harde schuimkunststoffen - Bepaling van de wateropname bij langdurige diffusie

34,42

Over deze norm

Status Definitief
Aantal pagina's 5
Gepubliceerd op 01-01-2008
Taal Engels
This International Standard specifies equipment and procedures for determining the long-term water absorption of test specimens by diffusion. It is intended for use with thermal-insulation products. It is designed to simulate the absorption of water by products subjected for a long period of time not only to high relative humidity, approximating to 100 %, on both sides, but also to a water vapour pressure gradient, as experienced by e.g. inverted roof or unprotected ground insulation. The test is not applicable to all types of thermal-insulation product. The product standard should normally state whether this test is applicable to a particular product.

Details

ICS-code 83.100
Nederlandse titel Harde schuimkunststoffen - Bepaling van de wateropname bij langdurige diffusie
Engelse titel Thermal-insulating materials - Determination of long-term water absorption by diffusion

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