These Globe Scientific test tubes are molded from premium grade polystyrene (PS) for clarity. The polystyrene tubes can withstand 1500 RPM during centrifugation. Features: 5mL capacity, 12 x 75mm, Non-graduated. Technical Specifications: Spin Rate: 1500 RPM, Not Autoclavable, Maximum temperature: 90ºC .
201-599-1400