DIN ISO 4505 (1991-07)被替代
Hardmetals - Metallographic Determination Of Porosity And Uncombined Carbon
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Specifies methods for the metallographic determination of the type, presence, and distribution of porosity and uncombined carbon in hardmetals. Coverage includes procedure, apparatus, and preparation of test piece sections. Also includes detailed diagrams.
ISO 4505:1978 - Identical
SNV DIN ISO 4505:1991 - Identical
SN EN 24505:1996 - Identical
SNV NF EN 24505:1993 - Identical
EN 24505:1993 - Identical
SNV NF EN 24505 : 1993 - Corresponds
SN EN 24505 : 1996 - Corresponds
EN 24505 : 1993 - Corresponds
ISO 4505 : 1978 - Identical
SNV DIN ISO 4505 : 1991 - Identical
