This method can be used for mixtures of carbides and binding metals that are free of pressing aids, as well as all types of pre-sintered or sintered hard metals that have a titanium content > 0.2% (m/m).
ONORM EN 24501-1994 history
1994ONORM EN 24501-1994 Hardmetals. Determination of titanium. Photometric peroxide method (ISO 4501:1978)