Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011 + Amd 1:2017); German version EN ISO 3656:2011 + A1:2017
Edition 2017-08

Steels - Determination of calcium content - Flame atomic absorption spectrometric method (FAAS); German version EN 10177:2019
Edition 2019-10

Water analysis - Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC); German version EN 1484:1997
Edition 2019-04

Fertilizers - Determination of ammoniacal nitrogen; German version EN 15475:2009
Edition 2009-04

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; German version EN 15476:2009
Edition 2009-04

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version EN 15559:2009
Edition 2009-06

Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide; German version EN 902:2016
Edition 2016-09

Water quality - Determination of total cyanide and free cyanide using flow analysis (FIA and CFA) - Part 2: Method using continuous flow analysis (CFA) (ISO 14403-2:2012); German version EN ISO 14403-2:2012
Edition 2012-10

Surface active agents - Determination of the active matter content of alkylamidopropylbetaines; German version EN 15109:2006
Edition 2007-02

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
Edition 2010-02