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Thermo Scientific™ Nalgene™ Oak Ridge Polysulfone Centrifuge Tubes w/Screw Caps Available on GSA/VA Contract for Federal Government customers only.

View contents easily using these strong, transparent polysulfone centrifuge tubes, featuring enhanced resistance to acids and bases. Tubes are availalbe with sealing caps.

Manufacturer:  Thermo Scientific™ 31150050

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Catalog No. 05-562-14D

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Must be filled to 80% of total capacity for centrifugation



Easily view contents using strong, transparent Thermo Scientific™ Nalgene™ Oak Ridge Polysulfone Centrifuge Tubes, featuring enhanced resistance to acids and bases. Tubes are available with sealing caps.


  • Round bottoms to fit high speed rotors
  • Transparent with straw-colored cast
  • Can be used up to 50,000 x g in refrigerated or non-refrigerated centrifuges
  • 3115-0030 and 3115-0050 include polypropylene linerless screw closures—easy to clean and provide leakproof† performance under ordinary use for most spins up to 10,000 x g
  • For leakproof assurance >10,000 x g use with sealing cap assembly (sold separately)

Ordering Information:

Sealing cap assembly sold separately (Cat. No. DS3131-series). Cat. No. 3115-0050 has a brim capacity of only 42mL but is designed to fit standard rotor.

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107.2 mm
50,000 x g
Screw Cap
50 mL
29 mm, 29.0mm
Centrifuge Tube
Product Certifications
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† The term “leakproof” applies to Thermo Scientific Nalgene products that meet the following criteria: a) Bottle/flask/funnel closure systems with closures smaller than 100mm, after they are filled with water, inverted, withstand air pressure of 2psig for 2 minutes, and no water escapes;. b) Bottle/funnel/flask closure systems of larger than 100mm after they are filled with water, inverted for 15 minutes, and no water escapes. Note: these tests, using other liquids, may not yield the same results. To ensure safe usage, customers are advised to test Thermo Scientific Nalgene bottles and closures under conditions of their planned applications. Thermo Scientific Nalgene products are leakproof at ambient temperature and pressure when used with their Nalgene closures.