GB/T 38513-2020
ActiveMethods for chemical analysis of niobium hafnium alloys—Determination of hafnium, titanium, zirconium, tungsten, tantalum contents—Inductively coupled plasma atomic emission spectrometry
铌铪合金化学分析方法 铪、钛、锆、钨、钽等元素的测定 电感耦合等离子体原子发射光谱法