Extenders - Specifications and methods of test - Part 16: Aluminium hydroxides (ISO 3262-16:2023); German version EN ISO 3262-16:2023
Edition 2023-09

Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 1: Extraction of amorphous iron oxides and hydroxides with ascorbic acid (ISO 12782-1:2012); German version EN ISO 12782-1:2012
Edition 2012-09

Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 2: Extraction of crystalline iron oxides and hydroxides with dithionite (ISO 12782-2:2012); German version EN ISO 12782-2:2012
Edition 2012-09

Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 3: Extraction of aluminium oxides and hydroxides with ammonium oxalate/oxalic acid (ISO 12782-3:2012); German version EN ISO 12782-3:2012
Edition 2012-09

Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014); German version EN ISO 14244:2016
Edition 2016-10

Sodium hydroxide for industrial use; Method of assay
Edition 1974-12

Sodium hydroxide for industrial use; Determination of chloride content; Mercurimetric method
Edition 1973-02

Potassium hydroxide for industrial use; Sampling; Test sample; Preparation of the main solution for carrying out certain determinations
Edition 1973-04