A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in Büchner funnels.
- Grade 3: 6µm
- Double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner funnels
- The high absorbency is particularly valuable when the paper is used as a sample carrier
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