150 mm Blue Dot Quantitative Folded Filter Papers / Grade 391

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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.

Price (USD):
$87.70
Item No.: 
FT-4-104-150
Availability: 
Pieces
100

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

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  • 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

Filter Papers for the Laboratory and Industry
en 4.1 MB

Applications

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

Dimensions

  • Dimensions
    N/A
  • Filter Diameter
    ⌀ 150 mm

Features

  • Color-coded Dot
    Blue dot: Very slow filtering, fine-pore, very dense, ash-free, wet-strengthened

General Specifications

  • Filter Format
    Folded
  • Filter Paper/Membrane Color
    White
  • Filtration Time
    180 s
  • Grade
    391
  • Specifications
    Fine-pore, dense, very slow filtering
  • Thickness
    0.15 mm

Materials of Construction

  • Filter Material
    100 % Cotton Linters (> 98 % alpha-cellulose; ash-free)
  • Membrane Material
    N/A

Physicochemical Information

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

Product Information

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

Weight

  • Basis Weight
    84 g/m²

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