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Whatman quantitative filters are designed for gravimetric analysis and the preparation of sample for instrumental analysis. Ashless filter papers with 0.007% ash maximum are very pure filters ideal for a wide range of critical analytical filtration procedures. All ashless papers are sold as packs of 100.
Grade 42 (2.5µm)
A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers. 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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