Standard Specification for Glass Westergren Tube, Reusable
NORMA vydaná dňa 1.7.2019
Designation standards: ASTM E923-97(2019)
Publication date standards: 1.7.2019
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Kategória: Technické normy ASTM
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)