Hygrothermal performance of building materials and products - Determination of hygroscopic sorption properties (ISO 12571:2000)
This Standard specifies two alternative methods for determining hygroscopic sorption properties of porous building materials and products: a) using desiccators and weighing cups (desiccator method) b) using a climatic chamber (climatic chamber method). The desiccator method is the reference method. The standard does not specify the method for sampling.
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