ASTM E923-97(2024)

Anotácia textu normy ASTM E923-97(2024) :

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.


Keywords:
blood, glass, reusable, sedimentation rate, westergren,, ICS Number Code 11.100 (Laboratory medicine)