![DIN EN ISO 11640:2018 - Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2018); German version EN ISO 11640:2018 DIN EN ISO 11640:2018 - Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2018); German version EN ISO 11640:2018](https://webstore.ansi.org/cover-pages/small/DIN/3005607.jpg)
DIN EN ISO 11640:2018 - Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2018); German version EN ISO 11640:2018
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![DIN EN ISO 11640:2013 - Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2012); German version EN ISO 11640:2012 DIN EN ISO 11640:2013 - Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2012); German version EN ISO 11640:2012](https://webstore.ansi.org/cover-pages/small/DIN/2008351.jpg)