Dynamic mixers and agitators - Definitions and hydraulic characterizations; German version EN 17877:2023
Edition 2025-05

Petroleum and natural gas industries - Progressing cavity pump systems for artificial lift - Part 1: Pumps (ISO 15136-1:2009); English version EN ISO 15136-1:2009
Edition 2010-04

Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023); German and English version prEN ISO 23697-2:2025
Edition 2025-08

Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23697-1:2023); German and English version prEN ISO 23697-1:2025
Edition 2025-08

Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2024); German version EN ISO 20236:2024
Edition 2025-05

Mechanical vibration - Torsional vibration of rotating machinery - Part 1: Evaluation of steam and gas turbine generator sets due to electrical excitation (ISO 22266-1:2022, Corrected version 2022-08)
Edition 2024-08

Guide for procurement of power station equipment - Part 2-6: Electrical equipment; Generators; German version EN 45510-2-6:2000
Edition 2001-02

Mechanical vibration - Measurement and evaluation of machine vibration - Part 5: Machine sets in hydraulic power generating and pump-storage plants (ISO 20816-5:2018)
Edition 2018-12

Explosive atmospheres - Part 34: Application of quality systems for ex product manufacture (ISO/IEC 80079-34:2018); German version EN ISO/IEC 80079-34:2020
Edition 2020-06

Mechanical vibration - Measurement and evaluation of machine vibration - Part 4: Gas turbines in excess of 3 MW, with fluid-film bearings (ISO 20816-4:2018)
Edition 2018-10