| 摘要 |
A test tube rack includes top and bottom plates. Openings in the top plate are aligned with corresponding cavities formed in the bottom plate. The two plates are spaced apart and secured together by legs which are reinforced by internally embedded dowel pins. Respective test tube clamps fit snugly in respective openings in the top plate. The clamp includes a ring section with a first set of downwardly extending fingers which grip a test tube in a first plane substantially parallel to the top and bottom plates. The ring also carries a second set of fingers which grip the test tube in a different plane so the test tube is automatically aligned to be substantially perpendicular to the top and bottom plates.
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