BS EN 12088:1997- Thermal insulating products for building applications. Determination of long term water absorption by diffusion
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This European Standard specifies equipment and procedures for determining the long term water absorption of test specimens by diffusion. It is applicable to thermal insulating products. It is intended to simulate the water absorption of products subjected to high relative humidities, approximating to 100%, on both sides and subjected to a water vapour pressure gradient for a long period of time e.g. inverted roof or unprotected ground insulation.