German standard methods for the examination of water, waste water and sludge; general information (group A); sampling of tidal waters (A 20)
Edition 1987-08

Daylight in interiors - Part 5: Measurement
Edition 2021-08

Entertainment Technology - Sound Engineering - Part 5: Measures to prevent the risk of hearing loss of the audience by high sound exposure of electroacoustic sound systems
Edition 2022-07

Analytical expression for daily solar profiles (IEC 61725:1997); German version EN 61725:1997
Edition 1998-03

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); sampling of sediments (S 11)
Edition 1987-08

Aerospace series - Magnesium alloy MG-C46001-T6 - Chill casting; German and English version EN 2732:2005
Edition 2005-10

Wastewater treatment plants - Part 11: General data required; German version EN 12255-11:2001
Edition 2001-07

Electric power technology - Current systems - Concepts, quantities, letter symbols
Edition 2003-06

German standard methods for the examination of water, waste water and sludge; general information (group A); sampling of water from mineral springs and spas (A 18)
Edition 1991-05

Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants; German version EN 12255-15:2003
Edition 2004-04