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Hygroscopic
The tendency of a material to absorb water. Having the characteristic of drawing moisture from the atmosphere. Sodium chloride (NaCl) is a hygroscopic substance.
An effect related to changes in moisture content or [legacy-smartlink:relative humidity]. The hygroscopic expansion coefficient of a tape refers to its change in length as it takes up water upon an increase in the ambient relative humidity.
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.