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ASTM E923-97

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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, anticoagulated 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.

1.2 The tubes are used together with a special rack to ensure they remain in a vertical position during the test.

1.3 This specification includes many dimensional requirements that are, for the most part, in agreement with the British Standards Institution, German Standards Institute, International Committee for Standardization in Haematology, and the National Committee for Clinical Laboratory Standards publications on Westergren tubes. The clinical procedure using the tube described in this specification is known as the "Westergren Method."

Note-For packaging standards, choose among the following standards: Specification E920, Specification E921; Practice E1133, and Specification E1157.

1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number E923
Publication Date Jan. 1, 1993
Language en - English
Page Count 2
Revision Level 97
Supercedes
Committee E41.01
Publish Date Document Id Type View
Jan. 1, 1993 E0923-97 Revision
Nov. 1, 2024 E0923-97R24 Reaffirmation
July 1, 2019 E0923-97R19 Reaffirmation
Nov. 1, 2013 E0923-97R13 Reaffirmation
Nov. 1, 2008 E0923-97R08 Reaffirmation
Nov. 10, 1997 E0923-97R03 Reaffirmation