This International Standard specifies a gravimetric method for the determination of the mass fraction of insoluble (free) carbon in carbides and hardmetals.
EN ISO 3908:2009 Referenced Document
ISO 3907:2009 Hardmetals - Determination of total carbon - Gravimetric method
EN ISO 3908:2009 history
2009EN ISO 3908:2009 Hardmetals - Determination of insoluble (free) carbon - Gravimetric method