Type of acid digestion performed at ambient pressure wherein the digestion temperature is limited by the boiling point of the acid.
See also: closed-vessel acid digestion
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 540 (https://doi.org/10.1515/pac-2015-0903)