Can be autoclaved repeatedly—last longer than polycarbonate tubes under conditions of repeated autoclaving
Can be used up to 50,000 x g in refrigerated or non-refrigerated centrifuges; 3139-0050 can be used up to 100,605 x g in the T29-8x50 rotor
Come with polypropylene sealing caps with silicone gaskets for extra leak protection when spinning >10,000 x g or spinning hazardous materials
Must be filled to 80% of total capacity when centrifuging
Optional sealing-cap assemblies available for selected sizes. Use DS3131-0020 (for 30mL tube) and DS3131-0024 (for 50mL Tube). Actual brim capacity of 3139-0050 is 42mL.
Warranty: 90 days
Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement. † 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.