90.93 Standard confirmed Jun 11, 2020
ISO
ISO/TC 119/SC 4 Sampling and testing methods for hardmetals
International Standard
77.160 Powder metallurgy
ISO 3907:2009 specifies a gravimetric method for the determination of the mass fraction of total carbon in carbides and hardmetals.
This method is applicable to
carbides of chromium, hafnium, molybdenum, niobium, tantalum, titanium, vanadium, tungsten and zirconium,
mixtures of these carbides and binder metals, free of lubricant,
all grade of presintered or sintered hardmetals, produced from these carbides, and
having a mass fraction of total carbon exceeding 4 %.
WITHDRAWN
ISO 3907:1985
PUBLISHED
ISO 3907:2009
90.93
Standard confirmed
Jun 11, 2020