Testing of benzene and benzene homologues - Determination of the thiophene content of benzene - Gas chromatography
Edition 2005-02

German standard methods for the examination of water, waste water and sludge - Parameters characterizing effects and substances (group H) - Part 7: Determination of acid and base-neutralizing capacities (H 7)
Edition 2005-12

Natural gas - Quality designation (ISO 13686:2013); German version EN ISO 13686:2013
Edition 2013-12

Petroleum, petrochemical and natural gas industries - Materials selection and corrosion control for oil and gas production systems (ISO 21457:2010); German version EN ISO 21457:2010
Edition 2010-12

Transportable gas cylinders - Gases and gas mixtures - Part 1: Properties of pure gases; German version EN 720-1:1999
Edition 1999-06

Gas infrastructure - Gas measuring systems - Functional requirements; German and English version prEN 1776:2024
Edition 2024-09

Metallic and other inorganic coatings - Electrodeposited coatings of chromium for engineering purposes (ISO 6158:2018); German version EN ISO 6158:2018
Edition 2019-03

pH measurement - Measuring methods with potentiometric cells - Terms and definitions
Edition 2016-03

Petroleum products - Determination of boiling range distribution - Gas chromatography method (ISO 3924:2019); German version EN ISO 3924:2019
Edition 2019-12

Surface chemical analysis - Analysis of zinc- and/or aluminium-based metallic coatings by glow-discharge optical-emission spectrometry (ISO 16962:2017)
Edition 2018-12