Test Tube, PYREX* 3mL, 10x75mm, are made from special tubing to give the optimum wall thickness. They are well annealed, resistant to heat and chemically stable. These tubes have a white marking spot. Beaded rims are fire-polished.
Disposable. Borosilicate Glass. Features smooth top and bottom to prevent cuts. Annealed to reduce breakage along stress points. Supplied in shrink wrapped trays to eliminate breaking and contamination. Size,mm: 10x75. Volume: 4ml.