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; anions (group D); determination of fluoride (D 4)
Edition 1985-07

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

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 30: Pretreatment, homogenization and aliquotation of non-homogeneous water samples (A 30)
Edition 1998-07

Translation services - Post-editing of machine translation output - Requirements (ISO 18587:2017)
Edition 2018-02

Water quality - Guidance on assuring the quality of biological and ecological assessments in the aquatic environment; German version EN 14996:2006
Edition 2006-08

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 33: Determination of manganese by atomic absorption spectrometry (E 33)
Edition 2000-06

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