In order to ensure the safe operation of CEFR, it is necessary to protect argon as a capping gas by using argon gas, which is chemically active. The oxygen and moisture in the argon can react chemically with sodium metal to produce sodium oxide, sodium hydroxide and hydrogen, which affect the safe operation of the fast reactor. The amount of impurities in the control gas is controlled to control the amount of impurities in the metal sodium.

     Tengzhou City, the vast chromatographic equipment Technology Co., Ltd., advancing with the times to scientific development as a guide, under the leadership of Wang Xiaoying manager, relying on Xiangying Institute of Analytical Technology, Institute of Chromatography, analysis and testing center, three scientific research units , The development of ultra-high sensitivity gas chromatography at the same time the determination of trace oxygen and water in the gas, the establishment of a viable argon in the trace oxygen and water analysis methods and sampling system to monitor the normal operation of the CEFR argon gas system gas and oxygen Water purity changes to monitor the air leakage and argon quality in the covered gas system.