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labcon.com 60 MetalFree%u00ae For Applications That Require Low-Trace MetalsMETALFREE%u00ae FEATURESMetalFree%u00ae Centrifuge TubesMetalFree centrifuge tubes are manufactured with a proprietary process to ensure that common trace metals and elements that can interfere with experiments are below one part per billion (<1ppb). MetalFree centrifuge tube manufacturing is certified by Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) and are perfect for sensitive applications requiring the assurance of low background metals and elements.Metals and other elements included in testing:MATERIAL GRADE RATINGAPPROVED USESPolypropylene (tubes) and polyethylene (caps)MedicalUSP Class VIMedical, Research, Industrial, Food & Beverage%u00fc Aluminum%u00fc Arsenic%u00fc Cadmium%u00fc Calcium%u00fc Chromium%u00fc Cobalt%u00fc Copper%u00fc Iron%u00fc Lead%u00fc Lithium%u00fc Magnesium%u00fc Manganese%u00fc Mercury%u00fc Nickel%u00fc Phosphorus%u00fc Potassium%u00fc Selenium%u00fc Silicon%u00fc Sodium%u00fc Vanadium%u00fc ZincDownload Certificate labcon.com/certificatesCENTRIFUGATION %u2122 %u2122 %u2122 %u2122 %u2122 -80%u00b0 C UltraLow TraceMetalsMetalFree%u00ae pipette tips on page 28Grid-Style Writing PanelPatented, smudge-resistant large writing panel for sample identificationAdditive-freeFlat caps for easy labelingHigh RCFWithstands high g-forces without leaking or breakingFreezable(-80%u00b0 C) with maximum liquid volume indicator for safe sample freezingRecyclableCaps & tubes have recycling ID codesUltra Low Trace MetalsTubes and caps made with virgin, 100% medical grade CFR21 compliant ultra low metal resinsPackaging OptionsCardboard RackBagGraduationsWith forward and reverse scales for easy-to-read & accurate measurementsNot shown to scale Patented