Sulphuric acid and oleum for industrial use; Determination of total acidity, and calculation of free sulphur trioxide content of oleum; Titrimetric method
Edition 1977-11

Surface active agents; Technical sodium primary alkylsulphates; Methods of analysis
Edition 1977-11

Surface active agents; Technical sodium secondary alkylsulphates; Methods of analysis
Edition 1977-11

Surface active agents; Technical sodium alkylarylsulphonates (excluding benzene derivatives); Methods of analysis
Edition 1977-11

Ethanol for industrial use; Methods of test; Part 2 : Detection of alkalinity or determination of acidity to phenolphthalein
Edition 1981-11

Acidity test of milk and liquid milk products according to Soxhlet-Henkel
Edition 2000-08

Analysis of honey - Determination of free acidity
Edition 2021-03

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

Ethanol as a blending component for petrol - Determination of total acidity - Colour indicator titration method; German version EN 15491:2021
Edition 2022-02

Test method for the determination of the degree of soil acidity according to Baumann-Gully; German version EN 16502:2014
Edition 2014-11