Grade 541 Circles, 70mm 100/pk

Grade 541 Quantitative Filter Paper Hardened Ashless, circle, 70 mm Grade 541 circles, hardened ashless, 70 mm. Hardened ashless: 0.006% ash maximum. These filters are acidhardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range of critical filtration procedures. These are the supreme quantitative filter papers featuring high wet strength and chemical resistance. These papers are acidhardened, which reduces ash to an extremely low level. The tough surfaces pf these fillters make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention. Fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. Typical applications include determining fiber in animal foodstuffs, gelatin in milk and cream, chloride in cement, and chloride and phosphorous in coal and coke. Grade 541: 22 µm