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ASTM E923-97(2019)

ASTM E923-97(2019)

Standard Specification for Glass Westergren Tube, Reusable

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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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