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

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

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

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

Codes of practice for drinking water installations - Part 200: Installation Type A (closed system) - Planning, components, apparatus, materials; DVGW code of practice
Edition 2012-05

German standard methods for the examination of water, waste water and sludge - Physical and physico-chemical parameters (group C) - Part 10: Calculation of the calcit saturation of water (C 10)
Edition 2012-12

Preparation and quality management of fluids for haemodialysis and related therapies - Part 3: Water for haemodialysis and related therapies (ISO 23500-3:2019); German version EN ISO 23500-3:2019
Edition 2019-11

Analysis of natural gas - Biomethane determination of halogenated compounds - Part 1: HCl and HF content by ion chromatography (ISO/DIS 2611-1:2023); German and English version prEN ISO 2611-1:2023
Edition 2023-11

Specification for installations inside buildings conveying water for human consumption - Part 2: Design; German version EN 806-2:2005
Edition 2005-06