Standard Test Method for Oxidation-Reduction Potential of Water
Edition 2014

Standard Test Methods for Determination of Manganese (IV) in Manganese Ores by Redox Titrimetry
Edition 2023

Expression of performance of electrochemical analyzers - Part 5: Oxidation-reduction potential or redox potential (IEC 60746-5:1992)
Edition 1996-07

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of the chemical oxygen demand (COD) (S 9)
Edition 1986-09

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

Soil quality - Guidance on laboratory testing for biodegradation of organic chemicals in soil under anaerobic conditions (ISO 15473:2002); German version EN ISO 15473:2020
Edition 2021-02

German standard methods for the examination of water, waste water and sludge; general information (group A); sampling of sea water (A 16)
Edition 1987-08

pH measurement - Plug socket and plug shielded for pH electrodes and pH combination electrodes
Edition 2018-02

Characterization of waste - Methodology for the determination of the leaching behaviour of waste under specified conditions; German version EN 12920:2006+A1:2008
Edition 2008-12

Molecular in vitro diagnostic examinations - Specifications for pre-examination processes in metabolomics in urine, venous blood serum and plasma (ISO 23118:2021); German version EN ISO 23118:2021
Edition 2021-08