WHATMAN: Grade 3 Qualitative Filter Paper

Grade 3 is double the thickness of Grade 1, so it can hold more precipitate without clogging and has increased wet strength. It is designed for use in Büchner funnels, and the high absorbency makes Grade 3 well suited for sample transport after collection.

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 3: 6 um (medium flow filter paper)

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.

Properties

  • – Particle retention: 6µm
  • – Nominal thickness: 390 µm
  • – Nominal basis weight: 185 g/m2
  • – Nominal ash content: 0.06%

Available Sizing

CODESizing DescriptionPack Size
1003-32323 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 23 mm100 ea
1003-05555 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 55 mm100 ea
1003-07070 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 70 mm100 ea
1003-09090 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 90 mm100 ea
1003-110110 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 110 mm100 ea
1003-125125 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 125 mm100 ea
1003-150150 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 150 mm100 ea
1003-185185 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 185 mm100 ea
1003-240240 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 240 mm100 ea
1003-320320 mm diaWhatman® qualitative filter paper, Grade 3, circles, diam. 320 mm100 ea
1003-917460 mm x 570 mmWhatman® qualitative filter paper, Grade 3, sheets, W × L 460 mm × 570 mm100 ea

More Information from Cytivia

Make An Enquiry