Whatman Filter Paper, round, pyramid-folded, Grade 540, 90 mm, 1000/PAK

Name: Whatman Filter Paper, round, pyramid-folded, Grade 540, 90 mm, 1000/PAK
Brand: Whatman

These filters are acid cured to give high wet strength and chemical resistance with extremely low ash content. The hard surface makes these filters suitable for a variety of critical filtration processes. These are the highest quantitative filter papers with high wet strength and chemical resistance. These papers are acid cured which reduces ash to extremely low levels. The hard surfaces of these fillers make them suitable for a variety of critical analytical filtration operations. Each grade offers a practical combination of filtration speed and particle retention. The general purpose ashless filter paper with medium retention and flow rate. Extremely pure and strong with a hard surface. High chemical resistance to strong acids and alkalis. Commonly used in gravimetric analysis of metals in acidic/alkaline solutions and in collecting hydroxides after precipitation by strong alkalis. Grade 540: 8 μm Features: Medium-fast filter, filtration speed of 200 s/100 ml -The hardened,Zobraziť viac

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