Apparatus for gas sorption measurement with integrated gas composition measurement device and gas mixing

An apparatus for testing of multiple material samples comprising:

• a gas delivery control system operatively connectable to the multiple material samples and configured to provide gas to the multiple material samples;
• a gas composition measurement device;
• pressure measurement devices;
• multiple valves that are selectively openable and closable;
• a series of conduits configured to selectively connect the multiple material samples individually to the gas composition measurement device and the pressure measurement devices by operation of the valves;
• wherein the gas composition measurement device is downstream in the series of conduits from the multiple material samples and the pressure measurement devices;
• wherein the gas composition measurement device is operable to determine the composition of gas in the series of conduits;
• wherein the pressure measurement devices measure pressure of gas in the series of conduits for determining gas sorption by each of the multiple material samples;
• a mixing system selectively connectable to the series of conduits;
• and wherein the mixing system is operable to cause forced mixing of the gas within the series of conduits for each of the multiple material samples thereby increasing uniformity of gas distribution and gas composition within the series of conduits so that gas delivered from the series of conduits to the gas composition measurement device is representative of gas composition after gas sorption by the multiple material samples.