DIN EN ISO 17489:2014-03 Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO 17489:2013); German version EN ISO 17489:2013
2014DIN EN ISO 17489:2014-03 Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO 17489:2013); German version EN ISO 17489:2013
2014DIN EN ISO 17489:2014 Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO 17489:2013); German version EN ISO 17489:2013