NF G52-231-4*NF EN ISO 5398-4:2019 Leather - Chemical determination of chromic oxide content - Part 4 : quantification by inductively coupled plasma (ICP)
2019NF G52-231-4*NF EN ISO 5398-4:2019 Leather - Chemical determination of chromic oxide content - Part 4 : quantification by inductively coupled plasma (ICP)