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Filter Papers; Fisherbrand; Qualitative; Grade P4; Cellulose fiber; Particle retention: 4-8um; Porosity: Fine; Filtration Speed: Herzberg, 730 seconds; Flowrate: Slow-25mL/min.; Circles; 7cm dia.
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Filter Paper, Qualitative; Fisherbrand; Grade P8; Cellulose fiber; Particle Retention: 20-25um; Porosity: Coarse; Filtration Speed: Herzberg, 55 seconds; Flowrate: Fast-160mL/min.; Circles; 7cm dia.
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Filter Paper, Qualitative; Fisherbrand; Grade P5; Cellulose fiber; Particle Retention: 5-10um; Porosity: Medium; Filtration Speed: Herzberg, 230 seconds; Flowrate: Slow-60mL/min.; Circles; 7cm dia.
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Filter Papers; Fisherbrand; Qualitative; Grade plain circles and sheets; P2; Cellulose fiber; Particle retention: 1-5u Porosity: Fine; Filtration Speed: Herzberg, 1400 seconds; Flowrate: Slow-5mL/min.; Circles; 7cm dia.
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