Објављен
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 %.
ПОВУЧЕН
ISO 3907:1985
ОБЈАВЉЕН
ISO 3907:2009
90.93
Одлука о потврђивању стандарда
12. 12. 2025.
Tvrdi metali - Određivanje sadržaja ukupnog ugljenika - Gravimetrijska metoda
60.60 Стандард објављен