BS EN ISO 4045:2018現(xiàn)行
Leather. Chemical tests. Determination of pH and difference figure
出版：British Standards Institution
專家解讀視頻
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.
ISO 4045:2018 - Identical
EN ISO 4045 : 2008 - Identical
EN ISO 4045:2018 - Identical
EN ISO 4045:2018 - Identical
ISO 4045:2018 - Identical
EN ISO 4045 : 2008 - Identical
