Testing the resistance of unalloyed and low alloy steels to intergranular stress corrosion cracking by attack of nitrate medium; welded and unwelded materials
Edition 1993-09

Cryogenic vessels - Static vacuum insulated vessels - Part 2: Operational requirements (ISO 21009-2:2015); German version EN ISO 21009-2:2015
Edition 2016-05

Cryogenic vessels - Transportable vacuum insulated vessels of not more than 1 000 litres volume - Part 2: Operational requirements (ISO 21029-2:2015); German version EN ISO 21029-2:2015
Edition 2016-02

Cryogenic vessels - Cleanliness for cryogenic service (ISO 23208:2017 + Amd 1:2020); German version EN ISO 23208:2019 + A1:2020
Edition 2020-11

German standard methods for the examination of water, waste water and sludge; gaseous components (group G); determination of chlorine dioxide (G 5)
Edition 1990-06

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

Water quality - Guidance for the routine sampling and preparation of benthic diatoms from rivers and lakes; German version EN 13946:2014
Edition 2014-07

Chemicals used for treatment of swimming pool water - Trichloroisocyanuric acid; German version EN 15032:2006+A1:2008
Edition 2008-06

Gas cylinders - Operational procedures for the safe removal of valves from gas cylinders (ISO 25760:2009); German version EN ISO 25760:2015
Edition 2015-04

Gas cylinders - Cylinder valves - Manufacturing tests and examinations (ISO 14246:2022); German version EN ISO 14246:2022
Edition 2022-05