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Qinsun Astm Standard Equipment & Supplies In In Eritrea
1 equipment items found
Manufactured by:Qinsun Instruments Co., LTD based inShanghai, CHINA
Face Masks bacterial filtration efficiency BFE tester is to determine the bacterial filtration efficiency (BFE) of medical face mask materials by employing a ratio of the upstream bacterial challenge to downstream residual concentration of the tested medical face mask materials. The tester provides certain flow rate of bacterial aerosol. The operator can measure the number of colony forming units ...