（ISO 4499-4-2016），英文名为Hardmetals -- Metallographic determination of microstructure -- Part 4: Characterisation of porosity, carbon defects and eta-phase content。
它（ISO 4499-4-2016）是在2016-02-01发布，在2016-02-01开始实施。
ISO 4499-4:2016 specifies methods for the metallographic determination of the presence, type, and distribution of porosity, uncombined carbon and eta-phase in hardmetals.
本标准文件共有18页。 ISO 4499-4-2016 Hardmetals -- Metallographic determination of microstructure -- Part 4_ Characterisation of porosi.pdf(990.34 KB)
