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Nov 19, 2020 · (ASTM F2299) Evaluates the filtration efficiency of particles 0.1 μm in size. The challenge material used consists of latex aerosol spheres in a controlled airflow chamber: Fluid/synthetic blood penetration resistance (ASTM F1862, ISO22609)
two main global standards covering medical mask testing are ASTM F2100 and EN 14683 and the testing requirements for each is detailed in the table on page 7. ATI does not supply any equipment that can be used to test Medical Masks with the exception of within the UK where we are able to supply particle counters to assist with testing to ASTM F2299.
The procedure employed the basic particle filtration method described in ASTM F2299, with some exceptions; notably the procedure incorporated a non-neutralized challenge. In real use, particles carry a charge, thus this challenge represents a more natural state. The non-neutralized aerosol is also specified
Bacterial filtration efficiency, % ASTM F2101 ≥95 ≥98 ≥98 Differential pressure, mm H2O/cm2 EN 14683:2019, Annex C. <5.0 <6.0 <6.0 Particulate filtration efficiency ASTM F2299 ≥85 ≥98 ≥98 Synthetic blood penetration resistance, minimum pressure in mm Hg ASTM F1862 80 120 160
)astm f2299/f2299m-03(2017)(نم ةيامحلل ةʋفصنلا ةعنق׀ا حʋشرت ي سفنتلا زاهجلا ةيامح ةزهجأ ɽ إ تاملاعلا عضإɽɽ رابتخلااɽ تابلطتلما تامʋسجلا)en 149: 2001 + a1: 2009()nfpa 702( تاسɾبلملل اعتشلاا ةʋلباق فʋنصت راʋعم ز