2017EN ISO 4044:2017 Leather - Chemical tests - Preparation of chemical test samples
2008EN ISO 4044:2008 Leather - Chemical tests - Preparation of chemical test samples
1998EN ISO 4044:1998 Leather - Preparation of Chemical Test Samples ISO 4044:1977
EN ISO 4044:1998 Leather - Preparation of Chemical Test Samples ISO 4044:1977 was changed to CEN EN ISO 4044:2008 Leather - Chemical tests - Preparation of chemical test samples (ISO 4044:2008).