Standard

ASTM E923:97(2013)

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: ASTM E923:97(2024)

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This specification covers the design and dimensional requirements for reusable glass Westergren tubes that measure the erythrocyte sedimentation rate (ESR), which is the suspension stability, or amount of settling after a specified time, of red blood cells in diluted, anti-coagulated human blood. The tubes shall be fabricated from Type I, Class B borosilicate glass, or Type II soda lime glass. Tubes shall comply with requirements for graduation line length and numbering, marking permanency, grinding bevel, and workmanship. The tubes should also pass a pigmentation and amber stain test.

Dokumentinformasjon

  • Standard fra ASTM
  • Publisert:
  • Utgave: 97(2013)
  • Versjon: 0
  • Varetype: IS
  • ICS 11.100

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