Simport Scientific

1.5ml Micrewtube with Lip Seal Flat Top Screw Cap, Round Bottom, Printed Marking Area, Graduated, Sterile - 500/Case Tube made of polypropylene.Cap made of polyethylene. This series of tubes is available either plain or with printed graduations and white marking area for sample identification. These lip seal screw caps are unattached but incorporate a flat top which provides a writing surface. These flat surfaced tubes can also be used with automatic capping machines and in packaging industries. Closures are supplied in natural color. Tubes are made of polypropylene while polyethylene caps are easy to screw on and off. More economical than T335 Series O-ring seal model. Cannot be autoclaved since closure is made of high density polyethylene. Can be centrifuged up to 17,000g. Will withstand temperatures from -90 C to +100 C. Certified RNase, DNase and Pyrogen safe. WARNING: Do not use Micrewtubes for storage in the liquid phase of liquid nitrogen. Such use may cause entrapment of liquefied nitrogen inside the vial and lead to pressure build-up resulting in possible explosion or biohazard release. Use appropriate safety procedures when handling and disposing of vials. Product photo may not exactly match the product offered for sale. Please refer to the product description.