Performance Tests of HPR20^PLUS On-line Gas Analysis Mass Spectrometer in Low Pressure

To obtain data for experiments and applications of HPR20^PLUS on-line mass spectrometer in low pressure. The gas, standard gas, and breath gas of low pressure cabin were analyzed respectively in unman and manned experiments under different low pressure. The accuracy and stability of HPR20^PLUS On-line Mass Spectrometer in unman experiments under different low pressure were conformed to the requirements of HPR20^PLUS on-line mass spectrometer, and the changes of breath gas in manned experiments were accorded with the laws of human experiments . Performance tests of HPR20^PLUS on-line mass spectrometer in low pressure is excellent , and HPR20 ^PLUS on-line mass spectrometer can be used for human experiments under low pressure .