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Invented by National Scientific Supply Company, Inc. Multi-purpose design serves a broad spectrum of biotechnology laboratory requirements including collection, processing, centrifugation & long-term storage. Vials are offered in 0.75ml, 1.6ml and 2.0ml sizes with conical or free-standing bases.
Circular 3.0mm syringe post in center of cap is easily pierced for radioisotope labeling and fraction collection.
Beveled seat presses O-ring into cap ensuring a perfect seal.
External threads on vial minimize risk of sample contamination.
Deep inner skirt on cap in reinforced for added strength to withstand extreme temperatures ranging from +121°C to -195°C (LN2 vapor phase).
Reinforced support collar and thick wall tube allow centrifugation to 27,000Xg.Ribs engage serrated holes in BioStor Racks for one-handed opening and closing of caps. Both conical and free-standing BioStor Vials are also compatible with other racks and storage.Unique two-turn threaded closure design ensures cap will uniformaly compress O-ring against beveled seat, eliminating distortion and maintaining seal integrity.External ribs on cap facilitate opening and closing of cap.Flexible ethylene/propylene O-ring is highly resistant to chemical attack.