Water quality - Determination of soluble silicates by flow analysis (FIA and CFA) and photometric detection (ISO 16264:2002); German version EN ISO 16264:2004
Edition 2004-05

Water quality - Biological classification of rivers - Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebrates (ISO 8689-2:2000); German version EN ISO 8689-2:2000
Edition 2000-08

Water quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates (ISO 8689-1:2000); German version EN ISO 8689-1:2000
Edition 2000-08

Water quality - Detection and enumeration of intestinal enterococci - Part 2: Membrane filtration method (ISO 7899-2:2000); German version EN ISO 7899-2:2000
Edition 2000-11

Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric titration method for the determination of total chlorine (ISO 7393-3:1990); German version EN ISO 7393-3:2000
Edition 2000-04

Water quality - Determination of the elimination and biodegradability of organic compounds in an aqueous medium - Activated sludge simulation test (ISO 11733:2004); German version EN ISO 11733:2004
Edition 2004-11

Water quality - Calibration and evaluation of analytical methods and estimation of performance characteristics - Part 2: Calibration strategy for non-linear second-order calibration functions (ISO 8466-2:2001)
Edition 2004-06

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 3: Determination of calcium and magnesium, complexometric method (E 3)
Edition 2002-03

German standard methods for the examination of water, waste water and sludge - Cations (group E) - Part 32: Determination of iron by atomic absorption spectrometry (E 32)
Edition 2000-05

German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 17: Determination of selected nitroaromatic compounds by gas-liquid chromatography (F 17)
Edition 1999-02