Method for removing a fluid substance from a closed system

摘要: A cap which can form an essentially leak-proof seal with open-ended vessel capable of receiving and holding fluid specimens or other materials for analysis. To minimize potentially contaminating contact between a sample present in the humans environment, invention features having frangible is penetrable by plastic pipette tip transfer device. The further includes filter limiting dissemination aerosol bubbles once has been pierced. positioned retaining structure. structure on above may be used to contain within cap. material