| 摘要 |
In a pipe 1 for measuring erythrocyte sedimentation rate, a sealing plug body 3, made of synthetic resin material which passes air but swells when water is absorbed thereby, is inserted into the pipe 1 in such a manner that the lower surface of the plug body 3 may be brought into contact with zero graduation of the pipe 1. The pipe is disposable, and it is possible to measure erythrocyte sedimentation rates easily and at small expense.
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