Small wastewater treatment systems for up to 50 PT - Part 7: Prefabricated tertiary treatment units; German version EN 12566-7:2016
Edition 2016-12

German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H); determination of the phenol index (H 16)
Edition 1984-06

Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data (ISO/IEC 80079-20-1:2017, including Cor 1:2018); German version EN ISO/IEC 80079-20-1:2019
Edition 2020-09

Conservation of cultural heritage - Desalination of porous inorganic materials by poultices; German version EN 17891:2023
Edition 2023-12

Indoor air quality - Diffusive samplers for the determination of concentrations of gases and vapours - Guide for selection, use and maintenance; German version EN 14412:2004
Edition 2004-12

GRP tanks and vessels for use above ground - Part 2: Composite materials - Chemical resistance; German version EN 13121-2:2003
Edition 2004-01

Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO/DIS 5667-3:2023); German and English version prEN ISO 5667-3:2023
Edition 2023-06

Steel and iron - Determination of chromium content - Potentiometric or visual titration method (ISO/DIS 4937:2024); German and English version prEN ISO 4937:2024
Edition 2024-04

Textiles - Methods for determination of certain aromatic amines derived from azo colorants - Part 1: Detection of the use of certain azo colorants accessible with and without extracting the fibres (ISO 14362-1:2017); German version EN ISO 14362-1:2017
Edition 2017-05

Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation; German and English version prEN 12255-13:2021
Edition 2021-07