An independent study has shown that Suzhou Ace Biomedical pipette filter tips have greater than 99 percent bacterial filtration efficiency, even at an increased challenge level.
A new independent study demonstrates Suzhou Ace Biomedical pipette filter tips have greater than 99 percent bacterial filtration efficiency (BFE), even at an increased challenge level.
The independent test procedure employed was modified from a standard BFE procedure, based upon ASTM F2101, in order to employ a more severe challenge than would be experienced in normal use.
For the testing a suspension of Staphylococcus aureus, ATCC #6538, was delivered to the pipette filter tip at a challenge level of greater than 105 colony forming units. The challenge was aerosolized using a nebulizer and delivered to the pipette filter tip under tests at a fixed air pressure and flow rate of five liters per minute. The aerosol droplets were generated in a glass aerosol chamber and drawn through the pipette filter tip into all glass impingers for collection. The challenge was delivered for a one-minute interval and sampling through the all glass impingers was conducted for two minutes to clear the aerosol chamber. Across a sample set of 10 pipette filters tips the testing demonstrated a mean filtration efficiency of 99.36 percent. All testing was performed in compliance with US FDA good manufacturing practice (GMP) regulations 21 CFR Parts 210, 211, and 820.
The pipette tip filters are fully compliant with CE, USP Class VI and European Pharmacopoeia statutory regulations as well as being free from heavy metals. The unique combination of these ultra-clean materials, with excellent porosity properties, has produced a highly reproducible filtered pipette tip with an excellent edge finish that always provides an optimum fit into the pipette tip enabling labs to routinely achieve superior liquid handling and dispensing. For further information please visit Pipette Tips Manufacturers and Suppliers | China Pipette Tips Factory (ace-biomedical.com)
To discuss high performance porous plastic components for filtering or separation applications, please contact info@ace-biomedical.com.
Post time: Jul-04-2022