Containment sealing bidirectional measurement test system, test device and test method

The invention discloses a containment sealing bidirectional measurement test system, which comprises a test pipeline and a data collecting and processing module, and is characterized in that the test pipeline is communicated with the internal space and the external space of a containment, and the test pipeline comprises a fan, a flow control measurement module and a plurality of control branches; the data collecting and processing module controls the connection and disconnection of a plurality of control branches, so that the fan can extract air from the internal space to the external space and inflate air from the external space to the internal space, and the pressure of the internal space can be maintained at a preset test pressure; the flow control and measurement module is connected with the fan, and the flow control and measurement module can control flow during air inflation and air exhaust and can measure parameters of extracted and inflated air; the data collecting and processing module is used for co