ASTM E923 PDF
ASTM E923 PDF
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ASTM E923 PDF

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Standard Specification for Glass Westergren Tube, Reusable

Published byPublication DateNumber of Pages
ASTM07/01/20193

ASTM E923 – Standard Specification forGlass Westergren Tube, Reusable

1.1 This specification describes requirements for a tube that measures the erythrocyte sedimentation rate (ESR). ESR is the suspension stability of red cells in diluted, anti-coagulated human blood.

1.1.1 The use of the term “rate” is, strictly speaking, not correct. The test measures the amount of settling of red cells after a specified time.

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