Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method (ISO 5983-2:2009)
Edition 2009-10-28

Milk - Determination of nitrogen content - Part 3: Block-digestion method (Semi-micro rapid routine method) (ISO 8968-3:2004)
Edition 2007-12-19

WATER QUALITY. DETERMINATION OF NITROGEN. PART 1: METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE. (ISO 11905-1:1997).
Edition 1998-12-01

Soil and waste - Determination of Chromium(VI) in solid material by alkaline digestion and ion chromatography with spectrophotometric detection (ISO 15192:2021) (Endorsed by Asociación Española de Normalización in September of 2021.)
Edition 2021-09-01

Water quality - Digestion for the determination of selected elements in water- Part 1: Aqua regia digestion. (ISO 15587-1:2002)
Edition 2002-11-28

Water quality- Digestion for the determantion of selected elements in water - Part 2: Nitric acid digestion. (ISO 15587-2:2002)
Edition 2002-11-28

Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas (ISO 15985:2014)
Edition 2018-06-27

Microbiology of the food chain - Detection of Trichinella larvae in meat by artificial digestion method (ISO 18743:2015)
Edition 2016-02-03

Microbiology of the food chain - Detection of Trichinella larvae in meat by artificial digestion method - Amendment 1: Method validation studies and performance characteristics (ISO 18743:2015/Amd 1:2023)
Edition 2024-04-17

Microbiology of the food chain - Methods for the detection of Anisakidae L3 larvae in fish and fishery products - Part 2: Artificial digestion method (ISO 23036-2:2021)
Edition 2022-01-19