German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of the chemical oxygen demand (COD), ranging from 5 to 50 mg/l (H 44)
Edition 1992-05

Hydrometry - Measurement of liquid flow in open channels - Velocity area methods using point velocity measurements (ISO 748:2021); German version EN ISO 748:2021
Edition 2022-12

Safety devices for protection against excessive pressure - Part 6: Application, selection and installation of bursting disc safety devices (ISO 4126-6:2014); German version EN ISO 4126-6:2014
Edition 2014-10

Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 4: Stainless steel cylinders with an Rₘ value of less than 1100 MPa (ISO 9809-4:2021); German version EN ISO 9809-4:2022
Edition 2023-03

Intelligent transport systems - Application requirements and objectives (ISO 17423:2025); English version EN ISO 17423:2025
Edition 2025-07

Oil and gas industries including lower carbon energy - Specific requirements for offshore structures - Part 4: Geotechnical design considerations (ISO 19901-4:2025); English version EN ISO 19901-4:2025
Edition 2025-05

Mechanical vibration - Rotor balancing - Part 21: Description and evaluation of balancing machines (ISO 21940-21:2022)
Edition 2025-01