Soil, treated biowaste, sludge and waste - Digestion of aqua regia soluble fractions of elements (ISO 54321:2020); German version EN ISO 54321:2021
Edition 2021-04

Textiles - Determination of metal content - Part 1: Determination of metals using microwave digestion; German version EN 16711-1:2015
Edition 2016-02

Foodstuffs - Determination of trace elements - Determination of tin by inductively coupled plasma mass spectrometry (ICP-MS) after pressure digestion; German version EN 15765:2009
Edition 2010-04

Soil, treated biowaste, sludge and waste - Digestion with a hydrochloric (HCl), nitric (HNO₃) and tetrafluoroboric (HBF₄) or hydrofluoric (HF) acid mixture for subsequent determination of elements; German version EN 13656:2020
Edition 2021-07

Plant biostimulants - Determination of specific elements - Part 1: Digestion by aqua regia for subsequent determination of elements; German and English version prEN 17701-1:2023
Edition 2023-04

Foodstuffs - Determination of trace elements - Determination of tin by flame and graphite furnace atomic absorption spectrometry (FAAS and GFAAS) after pressure digestion; German version EN 15764:2009
Edition 2010-04

Soil improvers and growing media - Determination of temperature-time profiles during composting and digestion; German version EN 17925:2024
Edition 2024-05

Soil and waste - Determination of Chromium(VI) in solid material by alkaline digestion and ion chromatography with spectrophotometric detection (ISO 15192:2021); German version EN ISO 15192:2021
Edition 2022-01

Animal feeding stuffs - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after microwave pressure digestion (extraction with 65 % nitric acid and 30 % hydrogen peroxide); German version EN 16277:2012
Edition 2012-09

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of the amenability to anaerobic digestion (S 8)
Edition 1985-06