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

• Easy-to-read black graduations in ±2% increments
• Contains a large, white frosted writing area
• RNase-, DNase-, and endotoxin-free
• Autoclavable (121 °C) and freezable (–80 °C)
• Can be centrifuged up to 12500×g
• Sterile tubes are sterilized by irradiation
• During the freezing process, it is better to use plastic rack
• During high-speed centrifugation, it is better to use suitable rotor adapters

The tubes are certified free of major critical trace metals to less than 1 ppb. Conical centrifuge tubes are available in two sizes with white flat caps for easy labeling. The polypropylene tubes and polyethylene caps are made of USP VI resins.