Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 8: Specific principles for the equipment for sewage treatment in granular media filter and granular fixed bed filter
Edition 2005-06

Packaging - Requirements for packaging recoverable through composting and biodegradation - Test scheme and evaluation criteria for the final acceptance of packaging; German version EN 13432:2000, Corrigenda to DIN EN 13432:2000-12, German version EN 13432:2000/AC:2005
Edition 2007-10

Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 9: Mechanical drainage of sewage sludge
Edition 2017-02

Biogas systems - Non-household and non-gasification (ISO 24252:2021); German version EN ISO 24252:2022
Edition 2024-04

Packaging - Evaluation of the ultimate aerobic biodegradability of packaging materials under controlled composting conditions - Method by analysis of released carbon dioxide; German version EN 14046:2003
Edition 2003-07

Water quality; detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia); part 2: method by membrane filtration (ISO 6461-2:1986); german version EN 26461-2:1993
Edition 1993-04

Plastics - Methods for the preparation of samples for biodegradation testing of plastic materials (ISO 10210:2012); German version EN ISO 10210:2017
Edition 2018-02

Water quality; detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia); part 1: method by enrichment in a liquid medium (ISO 6461-1:1986); german version EN 26461-1:1993
Edition 1993-04

Biogas systems - Non-household and non-gasification (ISO 24252:2021); German and English version EN ISO 24252:2022/A11:2023
Edition 2024-06

Microbiological examination of meat and meat products - Determination of Enterobacteriaceae - Part 1: Spatula method (reference method)
Edition 2019-06