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Qualitative Papers/ Grade 292 a

These filter papers are especially suitable for qualitative analyses that require a low ash content.

Item no.:  FT-3-215-090

Availability:  On Request

  • Pure cotton linters or cotton linters with refined pulp
  • No additives, such as wet-strengthening agents


zh 19.0 MB
Filter Papers for the Laboratory and Industry
en 9.1 MB
Carte da filtro per il laboratorio e l’industria
it 9.0 MB
Papiers filtres pour les laboratoires et l’industrie
fr 10.7 MB


Laboratory Filtration Products (US and Canada)
en 9.6 MB

Product properties

  • Grade
    292 a
  • Primary Product Type
  • Color
  • Material
    Cotton linters, low-nitrogen and nitrates
  • Filter Format
  • Filter Type
    Qualitative Filter Papers
  • Dimensions
    90 mm
  • Retention Rate
    4–7 µm
  • Pack Size
  • Packaging
    Non-sterile, bulk packed
  • Weight
    97 g/m²

Technical attributes

  • Specifications
    Medium dense, medium fast filtering
  • Filter Material
    Cotton Linters (low-nitrogen and nitrates; < 0.06 % ash)
  • Precipitations
    Fine crystalline
  • Thickness
    0.19 mm
  • Area of Application
    • Clarification
    • Analytical Sample Preparation
    • Particle Analysis
  • Filtration Time
    97 s