This International Standard specifies methods for the metallographic determination of the presence, type, and distribution of porosity and uncombined carbon in hardmetals.
DS/EN 24505:1993 history
1994DS/EN 24505:1994 Hardmetals - Metallographic determination of porosity and uncombined carbon
1993DS/EN 24505:1993 Hardmetals. Metallographic determination of porosity and uncombined carbon