United Scientific Disposable Glass Culture Tubes

United Scientific Disposable Glass Culture Tubes are suitable for a variety of lab settings. Each tube is heat-treated at temperatures exceeding 500°C and immediately packed in a cardboard box. This process avoids contamination, increasing the strength and durability of the glass.
Dimensional tolerances are strictly controlled for a uniform shape, including rounded bottoms and polished tops with smooth edges. Each tube has a chevron-shaped white enamel marking spot. Threaded necks accept a phenolic screw cap, sold seperately. Available in six sizes, from 8 ml to 33 ml.

• Type I, Class B 5.1 expansion borosilicate glass
• Heat-treated and securely packed to avoid contamination and increase strength
• Chevron-shaped marking spot for easy orientation reference