BS ISO 13899-2-2005 钢.合金钢中Mo、Nb和W含量的测定.感应耦合等离子体原子发射光谱法.Nb含量的测定
Steel - Determination of Mo, Nb and W contents in alloyed steel - Inductively coupled plasma atomic emission spectrometric method - Determination of Nb Content
This International Standard specifies a method for the determination of the niobium content in steel by means of inductively coupled plasma emission spectrometry. This method is applicable to niobium contents between 0,005 and 5 % (mass fraction).