Test tube without rim, Pre-cleaned Borosilicate Glass, O.D. x Length (mm): 18 x 150, 24ml, used for hot or cold applications, Reusable and Autoclaved, Conveniently hold inverted tubes for drying and to minimize collection of airborne contaminants
Fermentation Tube, Ungraduated, with Foot, Verify gas production in fermentation exercises, gas produced by yeast or other organisms rises into a 5 or 10 mL evolution tube, Diameter: 115mm, Size: 5 mL
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.