2019DIN EN ISO 17072-1:2019-07 Leather - Chemical determination of metal content - Part 1: Extractable metals (ISO 17072-1:2019); German version EN ISO 17072-1:2019
2019DIN EN ISO 17072-1:2019 Leather - Chemical determination of metal content - Part 1: Extractable metals (ISO 17072-1:2019)
2017DIN EN ISO 17072-1:2017 Leather - Chemical determination of metal content - Part 1: Extractable metals (ISO/DIS 17072-1:2017); German and English version prEN ISO 17072-1:2017
2011DIN EN ISO 17072-1:2011 Leather - Chemical determination of metal content - Part 1: Extractable metals (ISO 17072-1:2011); German version EN ISO 17072-1:2011