A suspension storage container 10 has a flat portion across a specific region including the tail end. The flat portion has an outer peripheral wall 13 forming a flat outer peripheral surface and partition walls 14 that extend in the flat cross section of the outer peripheral wall 13 in a direction substantially orthogonal to the major axis direction of the flat cross section to partition a chamber inside the outer peripheral wall 13 into plural chambers S1 through S3 aligned side by side in the major axis direction. A suspension K is stored only in part of all the chambers S1 through S3 , that is, the chamber S2 , and a sealing film 21 having the outline almost identical with the outline of the outer peripheral wall is laminated to the tail end surfaces of the outer peripheral wall 13 and the partition walls 14.
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