DIN EN ISO 5398-2:2009-06 Leather - Chemical determination of chromic oxide content - Part 2: Quantification by colorimetric determination (ISO 5398-2:2009); German version EN ISO 5398-2:2009
2009DIN EN ISO 5398-2:2009-06 Leather - Chemical determination of chromic oxide content - Part 2: Quantification by colorimetric determination (ISO 5398-2:2009); German version EN ISO 5398-2:2009
2009DIN EN ISO 5398-2:2009 Leather - Chemical determination of chromic oxide content - Part 2: Quantification by colorimetric determination (ISO 5398-2:2009); English version of DIN EN ISO 5398-2:2009-06
0000 DIN EN ISO 5398-2:2007
1968DIN 53309:1968 Testing of leather; determination of the chromous oxide content