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90 mm Purple Dot Quantitative Filter Paper Discs / Grade 393

These 90 mm diameter very slow filtering, purple dot filter paper discs are used for quantitative & 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-3-127-090

Price:  $22.00

Availability (ex works):  For more information please log in

100 Pieces
   

  • 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
  • Very 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
    100 g/m²

 

  • Application Area
    • Analytical Sample Preparation
    • Particle Analysis
    • Clarification
  • Filter Diameter
    ⌀ 90 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
    300 s
  • Grade
    393
  • Precipitations
    Very fine crystalline
  • Retention Rate
    1 µm
  • Specifications
    • Very fine-pore, very dense, very slow filtering
    • very dense
    • very slow filtering
  • Thickness
    0.17 mm

 

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