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Whatman quantitative filters are designed for gravimetric analysis and the preparation of sample for instrumental analysis. Hardened ashless filter papers with 0.006% ash maximum are treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. All hardened ashless papers are sold as packs of 100.
Grade 541 (22µm)
Fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. Typical applications include:
To help you choose the right filter for your application please click on the image below that will take you to the application guide for:
 There is also a link to the Cytiva Filter Paper Selector Guide
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