Plate and test method using the same

摘要

A flow path is formed in a zigzag shape to have a predetermined width from an upstream side to a downstream side. Accordingly, both side surfaces of the flow path divide the flow path into a plurality of regions from the upstream side to the downstream side to function as regulation surfaces for regulating the number of test particles filled inside the regions. Further, when a test is performed on each of the regions, the accumulated amount of tolerances of the test particles in the respective regions is small, which makes it possible to test the test particles with high accuracy.