Pressure regulators, automatic change-over devices, having a maximum regulated pressure of 4 bar, with a maximum capacity of 150kg/h, associated safety devices and adaptors for butane, propane, and their mixtures; German version EN 16129:2013
Edition 2013-08

Fire resistance tests on loadbearing elements - Part 4: Columns; German version EN 1365-4:1999
Edition 1999-10

Optics and photonics - Vocabulary for telescopic systems - Part 4: Terms for astronomical telescopes (ISO 14132-4:2015); Text in German and English
Edition 2016-07

Pyrotechnic articles - Other pyrotechnic articles - Part 4: Test methods; German version EN 16263-4:2015
Edition 2015-11

Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy consumption of gas combined heat and power appliances (mCHP) producing hot water and electricity; German version EN 13203-4:2022
Edition 2022-10

Resistance welding - Welding current measurement for resistance welding - Part 4: Calibration system (ISO 17657-4:2005); German version EN ISO 17657-4:2007
Edition 2007-09

Fixed firefighting systems - Components for sprinkler and water spray systems - Part 4: Water motor alarms (includes Amendment A1:2001); German version EN 12259-4:2000 + A1:2001
Edition 2001-08

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

Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned steel substrates - Part 4: Method for the calibration of ISO surface profile comparators and for the determination of surface profile - Stylus instrument procedure (ISO 8503-4:2012); German version EN ISO 8503-4:2012
Edition 2012-06

Thermal performance of building products and components - Specific criteria for the assessment of laboratories measuring heat transfer properties - Part 4: Measurements by hot box methods; German version EN 1946-4:2000
Edition 2000-07