Biofil® sterile centrifuge tubes (15 ml and 50 ml) are designed for reliable laboratory research and sample handling. Produced in cleanroom facilities (Class 100,000) using medical-grade polypropylene conforming to USP CLASS VI and ISO 13485 standards. The tubes withstand centrifugation forces up to 12,000g (conical type) and 6,000g (self-standing), and feature a secure leakproof cap to prevent sample loss. Each tube has accurate graduation marks for precise volume measurement and a large frosted writing area resistant to smearing. All tubes are RNase- and DNase-free, non-pyrogenic, and compatible with all standard racks and rotors. They are autoclavable at +121°C, ensuring safe reuse in sterile conditions. Suitable for biomedical analysis, molecular biology, microbiology, and cell culture applications.