These polypropylene tubes can be used as test tubes.  The cost on these tubes is low enough to make them disposable.  They will withstand RCF up to 5000 and are resistant to steam sterilization temperatures of 121°C.

The closure caps can be pressed in as a plug or screwed in.

These gamma sterilized polypropylene centrifuge tubes are available 15 ml and 50 ml.  The 15 ml can handle high speed centrifugation speed of 10,000 g.  The 50 ml can handle speeds up to 6,000 g.  Both have a conical base and are clear with easy to read graduations.  The 50 ml tube is also available in a free standing form.  EPS 50 piece racks are breakable into 2 x 25 tube racks.

These 1.5 ml polypropylene tubes are leak tested to 20,000 RCF for 20 minutes at 20C with an aqueous solution.  The attached lid provides a leak proof seal.  The lids can be easily pierced and have a frosted marking area and have graduation marking.

These 1.5 ml polypropylene snap cap microcentrifuge tubes are bulk packed 1000 per case.

These low density polyethylene plug-type stoppers are tight fitting and suitable for use with disposable tubes.