Last edited 23 Mar 2021


Containment systems for the prevention of pollution, Secondary, tertiary and other measures for industrial and commercial premises (CIRIA C736), published by CIRIA in 2014 defines absorption as: ‘A process in which one substance, usually a liquid or gas, permeates into, or is dissolved by, a liquid or solid.’

Absorption may also refer to things that are not substances, such as sound, light, impact and so on.

Articles about absorption on Designing Buildings Wiki include:

NB Technical paper 35: Moisture measurement in the historic environment, published by Historic Environment Scotland in 2021, defines absorption as: ‘A process in which a solid holds a gas or liquid within its open volume.’

See also: Adsorption.

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