Centrifuge Tubes, Metal-free Centrifuge Tube, Graduated, Screw Cap, Sterile

• Validated to contain less than 1ppb of more than 30 trace metal elements, ensuring samples are free of contaminants
• Graduations are printed in bold, easy-to-read black ink and are accurate to +/-2%
• Large white marking area provides excellent contrast for identification
• Easy to write on flat surface polyethylene (HDPE) caps feature integrated leak-proof seal
• Tubes include graduations molded into the conical bottom, ideal for pellet viewing and small volume quantification
• Convenient zip-closure bag is a practical alternative to folding and taping opened bags
• Easily refill reusable racks with tubes packed in bags