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45 mm Blue Dot Quantitative Filter Paper Discs / Grade 391

These 45 mm diameter very slow filtering, blue dot filter paper discs are used for quantitative and gravimetric analyses as well as for pressure or vacuum filtration. They are made out of 100 % cotton linters with an α-cellulose content of > 98 % and are acid-washed to make the papers ashless and achieve high purity.

Item no.:  FT-3-104-045

Availability:  On Request

   

  • Made of 100 % cotton linters
  • Ash-free (ash content ≤ 0.01 % according to DIN 54370)
  • Wet-strengthened
  • Color-coded box for easy selection
  • Very slow filtering
  • Fine-pore
  • 100 discs per pack

Brochure

Filter Papers for the Laboratory and Industry
en 6.4 MB
Papiers filtres pour les laboratoires et l’industrie
fr 6.3 MB
Carte da filtro per il laboratorio e l’industria
it 4.2 MB
宣传手册:实验室过滤产品精简目录
zh 19.0 MB

Catalog

Laboratory Filtration Products
en 8.2 MB

 

  • Basis Weight
    84 g/m²

 

  • Application Area
    • Analytical Sample Preparation
    • Particle Analysis
    • Clarification
  • Filter Diameter
    ⌀ 45 mm
  • Filter Format
    Discs
  • Filter Material
    100 % Cotton Linters (> 98 % alpha-cellulose; ash-free)
  • Filter Paper/Membrane Color
    White
  • Filter Type
    Quantitative Filter Papers
  • Filtration Time
    180 s
  • Grade
    391
  • Precipitations
    Very fine crystalline
  • Retention Rate
    2–3 µm
  • Specifications
    • Fine-pore, dense, very slow filtering
    • dense
    • very slow filtering
  • Thickness
    0.15 mm

 

  • Pack Size
    100
  • Packaging
    Non-sterile, bulk packed