Conical Centrifuge Tubes 15mL, 500Pcs Sterile Plastic Test Tubes with Screw Caps, Polypropylene Container with Graduated and Write-on Spot, DN/RNase Free, for Lab Sample Storage & Separate

High Purity PP Material: Our centrifuge tube is manufactured from high purity polypropylene, features a smooth inner wall with uniform thickness, and is easy for liquid filling and sample preparation. All the conical tubes are EO sterilized, with no RNase/DNase.

Tight Sealing Screw Cap: Withstanding high-speed centrifugation up to 10500xg RCF, our 15mL conical tube is ideal for centrifuge sample separation. The screw cap maintains a secure seal during centrifugation. Plus, this lab tube has a conical bottom, collecting denser particles.

Clear & Accurate Graduations: The graduations help measure the sample volume, ranging from 2mL to 15mL, in increments of 0.5mL. The graduations start from 2mL, measuring small volumes of samples accurately. In addition, the white printed graduations are clear and easy to read.

Large Writing Area: A large writing area is designed on the side of the 15mL centrifuge tube, and you can write whatever you want on it to label these tubes. In addition, the white writing area is highly visible, making it easy to identify each tube quickly.