Ria Vials Polypropylene are designed for compatibility and accuracy, these vials provide secure, contamination-resistant storage--safeguarding samples during analysis. Polypropylene offers strength and chemical resistance, making them suitable for a range of uses while improving sample quality. Polypropylene tubes are generally used in RIA, Coagulation & bacteriology. The polypropylene tubes are clear and can withstand 3000 RCF during centrifugation while the transparent polystyrene tubes can withstand 1400 RCF. The PP tubes can accept common acids, alkalize & solvents at room temperature while the PS tubes can accept mild bases, and weak acids but not organic solvents. Material: Polypropylene Brand: PolyLab Tubes: 100 Pcs/Pk (without caps) The image is for representation purpose only Code Size P64002 12 X 75 mm/ PP