PS or PP.

• Manufactured without the use of release agents that could cause errors and interference in RIA tests
• Precision moulding ensures uniform size and shape
• PP tubes are translucent, can withstand centrifugation speeds over 3000×g, are suitable for most common acids, solvents and alkalis at room temperature, are almost unbreakable, and can be sterilised at 120 °C
• PS tubes are transparent, will withstand centrifugation speeds up to 1400×g, can tolerate aqueous solutions, mild bases and weak acids (but not organic solvents, aromatic or chlorinated hydrocarbons), and cannot be autoclaved

For use in bacteriology, radioimmunoassay (RIA), coagulation, and other routine laboratory procedures.