Measurement system, rack export-import unit, and method of exporting and importing racks

A rack export-import unit comprising:

• a setting section that is capable of setting racks thereon and that is capable of transferring each of the set racks in a lateral direction of the rack;
• an export section that is positioned on one end side of the setting section and that exports the rack transferred from the setting section;
• an import section that is positioned on another end side of the setting section and that imports the rack to the setting section;
• and
• a transfer prevention section that prevents the rack imported from the other end side from being transferred from the one end side.

A method of exporting and importing racks, comprising:

• exporting one rack holding a sample container from a rack export-import unit that is capable of setting racks thereon and that is capable of transferring each of the set racks in a lateral direction of the rack;
• transporting the one rack exported from the rack export-import unit to a measurement unit that measures a sample contained in the sample container;
• transporting the one rack to the rack export-import unit after the measurement unit completes the measurement;
• and
• importing the one rack to the rack export-import unit such that the one rack is aligned with another rack set on the rack export-import unit in the lateral direction, wherein
• the one rack and the other rack are aligned with each other in the lateral direction with interposing a transfer prevention section that is movable in the lateral direction on the rack export-import unit.