2017DIN EN ISO 17075-1:2017-05 Leather - Chemical determination of chromium(VI) content in leather - Part 1: Colorimetric method (ISO 17075-1:2017); German version EN ISO 17075-1:2017
2017DIN EN ISO 17075-1:2017 Leather - Chemical determination of chromium(VI) content in leather - Part 1: Colorimetric method (ISO 17075-1:2017); German version EN ISO 17075-1:2017
1970DIN EN ISO 17075-1 E:2015-07 Leather Chemical determination of chromium (VI) content in leather Part 1: Colorimetric method (draft)