Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH; German version EN 17721:2024
Edition 2025-03

Brewhouse plants - Minimum specifications
Edition 2021-02

Biological equipment for treating air and other gases - Requirements and application guidance for deodorization in wastewater treatment plants (ISO 23139:2023)
Edition 2024-07

Petroleum and natural gas industries - Materials for use in H₂S-containing environments in oil and gas production - Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys (ISO 15156-3:2020); German version EN ISO 15156-3:2020
Edition 2025-02

Foodstuffs - Determination of elements and their chemical species - Determination of inorganic arsenic in foodstuffs of marine and plant origin by anion-exchange HPLC-ICP-MS; German version EN 16802:2016
Edition 2016-07

Animal feeding stuffs: Methods of sampling and analysis - Determination of inorganic arsenic in animal feed by anion-exchange HPLC-ICP-MS; German version EN 17374:2020
Edition 2020-09

Sample preparation - Dispersing procedures for powders in liquids (ISO 14887:2000)
Edition 2010-03

Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer (ISO 14851:2019); German version EN ISO 14851:2019
Edition 2019-07

Water quality - Guidance on the use of in vivo absorption techniques for the estimation of chlorophyll-a concentration in marine and fresh water samples; German version EN 16161:2012
Edition 2012-09

General principles of cathodic protection in seawater; German version EN 12473:2014
Edition 2014-07