ISO 3908:2009规定了测定碳化物和硬质合金中不溶性(游离)碳质量分数的重量法。
本方法适用于
铪、钼、铌、钽、钛、钒、钨和锆的碳化物,
这些碳化物和粘结剂金属的混合物,不含润滑剂,和
由这些碳化物生产的所有等级的预烧结或烧结硬质合金,
具有0.02%至0.5%的不溶性碳的质量分数。
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 ofinsoluble carbon between 0,02 % and 0,5 %.