Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes (ISO 7393-2:2017); German version EN ISO 7393-2:2018
Edition 2019-03

Animal and vegetable fats and oils - Determination of acid value and acidity (ISO 660:2020); German version EN ISO 660:2020
Edition 2020-12

Chemicals used for treatment of water intended for human consumption - Ozone; German version EN 1278:2010
Edition 2010-08

Mixing water for concrete - Specification for sampling, testing and assessing the suitability of water, including water recovered from processes in the concrete industry, as mixing water for concrete; German version EN 1008:2002
Edition 2002-10

Steel and iron  - Determination of titanium content - Diantipyrylmethane spectrophotometric method (ISO 10280:1991); German version EN ISO 10280:1995
Edition 1996-02

Method of testing cement - Part 2: Chemical analysis of cement; German version EN 196-2:2013
Edition 2013-10

Oilseeds - Extraction of oil and preparation of methyl esters of triglyceride fatty acids for analysis by gas chromatography (Rapid method) (ISO 17059:2019); German version EN ISO 17059:2019
Edition 2019-12

Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (ISO 10720:1997); German version EN ISO 10720:2007
Edition 2007-06

Chemicals used for treatment of water intended for human consumption - Sodium hypochlorite; German version EN 901:2013
Edition 2013-12

Chemicals used for treatment of water intended for human consumption - Chemicals for emergency use - Sodium dichloroisocyanurate, dihydrate; German version EN 12932:2015
Edition 2015-05