2017DIN EN 10247:2017-09 Micrographic examination of the non-metallic inclusion content of steels using standard pictures; German version EN 10247:2017
2017DIN EN 10247:2017 Micrographic examination of the non-metallic inclusion content of steels using standard pictures
2007DIN EN 10247:2007 Micrographic examination of the non-metallic inclusion content of steels using standard pictures; English version of DIN EN 10247:2007-07