NS-EN ISO 5398-4:2007 Leather — Chemical determination of chromic oxide content — Part 4: Quantification by inductively coupled plasma — optical emission spectrometer (ICP-OES) (ISO 5398-4:2007)
2019NS-EN ISO 5398-4:2019 Leather - Chemical determination of chromic oxide content - Part 4: Quantification by inductively coupled plasma (ICP) (ISO 5398-4:2018)
2007NS-EN ISO 5398-4:2007 Leather — Chemical determination of chromic oxide content — Part 4: Quantification by inductively coupled plasma — optical emission spectrometer (ICP-OES) (ISO 5398-4:2007)