用称量法配制混合氢气标准气

Makinh up the Mixed Standard Gas of Hydrogen in Weighing Method

以高纯氢气、氧气、氮气为原料，采用称全法配制混合氢气标准气．结果表明：该方法配制的混合氢气标准气精确度高，相对不确定度低．配制方法快速准确，可广泛用于工业用混合氢气标准气的配制和生产中．

By useing highly purified H. O and N as raw material,we make up the mixed standardgas of hydrogen with precise scales in weighing method. The result shows that the mixed standard gasof hydrogen has a high accurate degree and a low relative uncertain degree. The method is quick andprecise and so it can be widely used in the production of the mixed standard gas of hydrogen for industrial use.