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https://www.nist.gov/glossary-term/17911

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 Back to the OSAC Lexicon

# Absorption

the penetration of one substance into the inner structure of another, as distinguished from adsorption, in which one substance is attracted to and held on the surface of another.

06/12/2023

**Standard Source**

Source link

*Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org*

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