Determination of lactoperoxidase activity in milk - Part 1: Photometric method (Reference method)
Edition 2002-08

Textiles - Tests of colour fastness - Part Z10: Determination of relative colour strength of dyes in solution (ISO 105-Z10:1997); German version EN ISO 105-Z10:1999
Edition 1999-09

Aerospace series - Organic compounds - Test method - Analysis by infrared spectroscopy; German and English version EN 6042:2023
Edition 2024-03

Space product assurance - Detection of organic contamination surfaces by infrared spectroscopy; English version EN 16602-70-05:2014
Edition 2015-01

Foodstuffs - Determination of nitrate and/or nitrite content - Part 5: Enzymatic determination of nitrate content of vegetable-containing food for babies and infants; German version EN 12014-5:1997
Edition 1997-08

Testing of petroleum products and related products - Analysis by infrared spectrometry - General working principles
Edition 2024-03

Photocatalysis - Glossary of terms; German version EN 16981:2021
Edition 2021-12

German Standard Methods for the Analysis of Water, Waste Water and Sludge; Anions (Group D); Determination of Borate Ions (D 17)
Edition 1981-03

German standard methods for the examination of water, waste water and sludge - Physical and physical-chemical parameters (group C) - Part 3: Determination of absorption in the range of the ultraviolet radiation, Spectral absorptions coefficient (C 3)
Edition 2005-07

Dyestuffs - Determination of solubility in organic solvents - Gravimetric and photometric methods (ISO 7579:2009); German version EN ISO 7579:2009
Edition 2010-03