Metallic powders - Determination of oxygen content by reduction methods - Part 3: Hydrogen-reducible oxygen (ISO 4491-3:1997); German version EN ISO 4491-3:2006
Edition 2006-06

Testing of mineral oils - Determination of saponification number - Part 2: Color-indicator titration, insulating oils
Edition 2009-04

Milk, milk products, infant formula and adult nutritionals - Determination of chloride - Potentiometric titration method (ISO 21422:2018, Corrected version 2021-03)
Edition 2022-04

Surface active agents - Fatty alkyl dimethyl amine oxides - Determination of the amine oxide content; German version EN 1791:1997
Edition 1997-03

Haemostaseology - Reference method for the ristocetin-cofactor activity of the VWF; Text in German and English
Edition 2022-05

Testing of liquid fuels - Part 1: Determination of bromine acceptance by electrometric Dead-Stop-method of samples with a bromine acceptance of more than 0,5 g/100 g (BA)
Edition 2018-12

German standard methods for the examination of water, waste water and sludge - Sub-animal testing (group T) - Part 4: Determination of the genotoxic potential using the Salmonella microsome test (Ames Test) (T 4)
Edition 1999-12

Microbiological analysis of milk; determination of coliforms; method with liquid medium
Edition 1992-04

Hardmetals; determination of cobalt; potentiometric method; identical with ISO 3909:1976
Edition 1994-05

Textiles - Tests for colour fastness - Part N05: Colour fastness to stoving (ISO 105-N05:1993); German version EN ISO 105-N05:1995
Edition 1995-05