DIN EN ISO 4045:2018现行
Leather?- Chemical tests?- Determination of pH and difference figure (ISO?4045:2018); German version EN?ISO?4045:2018
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
This document specifies a method for determining the pH value and the difference figure of an aqueous leather extract. It is applicable to all types of leather.
EN ISO 4045 : 2008 - Identical
ISO 4045:2018 - Identical
EN ISO 4045:2018 - Identical
EN ISO 4045:2018 - Identical
EN ISO 4045 : 2008 - Identical
ISO 4045:2018 - Identical
