钢铁及合金 氮含量的测定 惰性气体熔融热导法
Steel,iron and alloy-Determination of nitrogen content-Thermal conductimetric method after fusion in a current of inert gas

2012-11-07

钢铁及合金化学分析方法 蒸馏分离-中和滴定法测定氮量
Methods for chemical analysis of iron，steel and alloy--The neutral titration method for the determination of nitrogen content after distillation separation

1994-09-26

钢铁及合金 氧、氮和氢含量的测定 脉冲加热惰气熔融-飞行时间质谱法（常规法）
Iron,steel and alloy-Determination of oxygen,nitrogen and hydrogen contents-TOF-mass spectroscopy method after fusion in a current of inert gas(Routine method)

2012-11-07