Water quality - Determination of epichlorohydrin; German version EN 14207:2003
Edition 2003-09

Water quality - Determination of the chemical oxygen demand index (ST-COD) - Small-scale sealed tube method (ISO 15705:2002)
Edition 2003-01

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

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 16: Determination of aniline derivates by gas chromatography (F 16)
Edition 1999-06

Water quality; determination of anionic surfactants by measurement of the methylene blue index MBAS (ISO 7875-1:1984, modified); German version EN 903:1993
Edition 1994-01

German standard methods for the examination of water, waste water and sludge - Anions (Group D) - Part 23: Determination of selenium by atomic absorption spectrometry (D 23)
Edition 1994-10

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 6: Determination of lead by atomic absorption spectrometry (AAS) (E 6)
Edition 1998-07

Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis; German version EN 12918:1999
Edition 1999-11

Recreational diving services - Requirements for the training of recreational scuba divers - Part 2: Level 2 - Autonomous diver (ISO 24801-2:2014); German version EN ISO 24801-2:2014
Edition 2014-08

Assistive products - Guidelines on cognitive accessibility - Daily time management (ISO 21802:2019); German version EN ISO 21802:2021
Edition 2021-11