Pepper an pepper oleoresins - Determination of piperine content - Method using high-performance liquid chromatography (HPLC)
Edition 1999-09

Fruit and vegetable juices - Determination of the free amino acids content - Liquid chromatographic method; German version EN 12742:1999
Edition 1999-04

Ferronickel; determination of cobalt content; flame atomic absorption spectrometric method (ISO 7520:1985); german version EN 27520:1991
Edition 1992-02

Plastics - Hardeners and accelerators for epoxide resins - Determination of free acid in acid anhydride (ISO 7327:1994); German version EN ISO 7327:1997
Edition 1997-11

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of manganese (E 2)
Edition 1983-05

Animal feeding stuffs - Determination of semduramicin content - Liquid chromatographic method using a "tree" analytical approach; German version EN 16158:2012
Edition 2012-05

Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998
Edition 1998-08

Determination of boron (III) oxide in refractory products - Part 1: Determination of total boron (III) oxide in oxidic materials for ceramics, glass and glazes (ISO 21078-1:2008); German version EN ISO 21078-1:2008
Edition 2008-04

Water quality - Determination of the methylene blue active substances (MBAS) index - Method using continuous flow analysis (CFA) (ISO 16265:2009); German version EN ISO 16265:2012
Edition 2012-05

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2023
Edition 2023-10