HAWK 15mL Metal-Free Centrifuge Tubes, Pre-Sterilized, 20K RCF, Conical, Clear Cap, 500-pk

These 15mL Conical Centrifuge Tubes are produced from a proprietary purified polypropylene blend that is certified to be free of trace metal content. Tested via ICP-MS, these tubes are certified to contain less than 1ppm of common trace metals including: Calcium, Magnesium, Zinc, Iron, Manganese, Copper, Aluminum, Silicon, Nickel, Vanadium, Sodium, Phosphorous, Cobalt, Chromium, Potassium, Lithium, Lead, Selenium, Cadmium, Mercury, and Arsenic.

In addition to a superior level of purity, our HWK15-MF tubes include a wide array of premium features. These tubes are engineered to withstand a max centrifugation rate of 20,000xg, with this RCF specification printed directly on both the 15mL and 50mL tubes. These tubes also feature highly visible graduations that are easily identified at any angle and the printed max-freeze line indicates the maximum allowable volume to be frozen inside the tubes. The included screw caps offer a smooth seal that is easy to open/close with one hand without compromising the integrity of the 95kPA leak-proof seal.

• Ultra-Pure Polypropylene Certified Free of Trace Metals

• Highly visible Graduations with Maximum Freeze Capacity Line

• Resealable Zip Bags of 25 Tubes

• E-Beam Sterilized (SAL 10^-6)

• RNase, DNase, and Pyrogen-Free