Whatman Grade 1 Qualitative Filter Papers

These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids.


  • Porosity: medium
  • Surface: smooth
  • Filtration speed: ASTM, 40 sec; Herzberg, 150 sec
  • Particle Retention: >11 µm
  • 4.25 cm
  • 1 pack of 100 Circles
  • 1001-042
  • Excellent condition - brand new, sealed
  • Thanks for looking!
  • Other Whatman Filter Papers are available in MANY sizes - email if interested & we'll create a listing