Qualitative Filter Paper Discs, Grade 1291

Top Features of Qualitative Filter Papers:       

  • Made of > 95 % α-cellulose 
  • Ash content below 0.1 % according to DIN 54370
  • Fine-pore, dense
  • Very slow filtering
  • 385 mm diameter
  • 100 discs per pack   

Popular Applications for Qualitative Filter Papers:       

  • Analytical Sample Preparation
  • Particle Analysis

Price (USD):
$150.00
Item No.: 
FT-3-209-385

*Custom/bulk order quotes are provided within 24 hours of request.

These 385 mm diameter qualitative filter paper discs are ideal for analytical purposes and routine analyses. They are wet strengthened for use in pressure or vacuum filtration. Made from refined pulp and cotton linters with more than 95% alpha-cellulose and an ash content of less than 0.1% according to DIN 54370.  

Applications

  • Application
    Clarification  
  • Application Area
    • Analytical sample preparation  
    • Particle analysis  

Dimensions

  • Dimensions
    N/A  
  • Filter Diameter
    ⌀ 385 mm  

General Specifications

  • Filter Format
    Discs  
  • Filter Paper/Membrane Color
    White  
  • Filtration Time
    180 s  
  • Grade
    1291  
  • Specifications
    • Fine-pore  
    • dense  
    • very slow filtering  
  • Thickness
    0.15 mm  

Materials of Construction

  • Filter Material
    Cotton Linters and Refined Pulp (> 95 % alpha-cellulose; ash content ≤ 0.1 % according to DIN 54370)  
  • Membrane Material
    N/A  

Physicochemical Information

  • Pore Size
    N/A  
  • Precipitations
    Very fine crystalline  
  • Retention Rate
    2–3 µm  

Product Information

  • Filter Type
    Qualitative Filter Papers  
  • Pack Size
    100  
  • Packaging
    Non-sterile, bulk packed  

Weight

  • Basis Weight
    84 g/m²  

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