This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
ISO 3908:2009 specifies a gravimetric method for the determination of the mass fraction of insoluble (free) carbon in carbides and hardmetals.
This method is applicable to
- carbides of hafnium, molybdenum, niobium, tantalum, titanium, vanadium, tungsten and zirconium,
- mixtures of these carbides and binder metals, free of lubricant, and
- all grades of presintered or sintered hardmetals, produced from these carbides,
having a mass fraction of insoluble carbon between 0,02 % and 0,5 %.
Status : PublishedPublication date : 2009-10
Edition : 3Number of pages : 4
Technical Committee:Sampling and testing methods for hardmetals
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