Metal-free centrifuge tubes are ideal for environmental uses such as water analysis and other applications wherein tubes have the potential to contaminate samples.

• Available in two volumes: 15 ml and 50 ml
• Tubes are certified free of major critical trace metals to less than 1 ppm
• Easy-to-read black graduations are accurate to ±2%, with 0.5 ml increments (15 ml) or 2.5 ml increments (50 ml)
• Both the graduations and writing areas are chloroform-resistant
• Engraved graduation at the conical bottom of each tube
• Max. rotational speed up to 12500 g
• Autoclavable at 121 °C and freezable to –80
• During the freezing process, it is better to use plastic rack
• During high-speed centrifugation, it is better to use suitable rotor adapters

Tubes feature a large unerasable frosted white printed writing area.