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150 mm Blue Dot Quantitative Folded Filter Papers / Grade 391

These 150 mm diameter very slow filtering, blue dot folded filter papers 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-4-104-150

Price:  $61.00

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
  • Fine-pore
  • 100 folded filters per pack

Brochure

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Catalog

Laboratory Filtration Products
en 8.2 MB

 

  • Basis Weight
    84 g/m²
  • Color-coded Dot
    Blue dot: Very slow filtering, fine-pore, very dense, ash-free, wet-strengthened

 

  • Application Area
    • Analytical Sample Preparation
    • Particle Analysis
    • Clarification
  • Filter Diameter
    ⌀ 150 mm
  • Filter Format
    Folded
  • 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