2016DIN EN ISO 19070:2016-07 Leather - Chemical determination of N-methyl-2-pyrrolidone (NMP) in leather (ISO 19070:2016); German version EN ISO 19070:2016
2016DIN EN ISO 19070:2016 Leather - Chemical determination of N-methyl-2-pyrrolidone (NMP) in leather (ISO 19070:2016)