Certi Tube, Digestion Tubes without Caps, 50 mL, Rack Lok; 500/Pack

Disposable digestion tubes eliminate transfer steps|Tubes that act as a digestion vessel or storage container and fit perfectly into the HotBlock and AutoBlock systems|Low metals background and EPA approved for digestions|Accessories include watch glasses, reflux caps, and transfer/storage racks|Redesigned for optimum performance! New certificate of analysis ensures low-levels of 68 elementsthe industry's cleanest resin Stronger, thicker walls for added durability when digesting with concentrated acids Redesigned thread for a tighter seal Wobble freedeeper bottom dimple provides added stability|Approved for hot plate digestions and certified for low metals background.|Graduated digestion cups are certified for volume to 0.5%. The accurate graduations eliminate the need for graduated cylinders and transfer steps, saving you both time and labor costs. The clarified homopolymer polypropylene construction has greater chemical resistance and heat tolerance than commonly used co-polymer polypropylene vials. Rack Lok design includes side-tabs making placement or removal of the cap easy with one handalso keeps cups secure while in racks.