This International 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.
This International Standard does not specify the method for sampling.
The methods specified in this International Standard can be used to determine the moisture content of a sample in equilibrium with air at a specific temperature and humidity.
ISO 12571:2013 Referenced Document
ISO 12570 Hygrothermal performance of building materials and products — Determination of moisture content by drying at elevated temperature AMENDMENT 2
ISO 9346 Hygrothermal performance of buildings and building materials - Physical quantities for mass transfer - Vocabulary
ISO 12571:2013 history
2021ISO 12571:2021 Hygrothermal performance of building materials and products — Determination of hygroscopic sorption properties
2013ISO 12571:2013 Hygrothermal performance of building materials and products.Determination of hygroscopic sorption properties
2000ISO 12571:2000 Hygrothermal performance of building materials and products - Determination of hygroscopic sorption properties