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Quantitative Papers/ Grade 391

These 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-2-104-580580

Availability (ex works):  On Request

  • Made of 100 % cotton linters
  • Ash-free (ash content ≤ 0.01 % according to DIN 540370)
  • Wet-strengthened
  • Color-coded box for easy selection

Brochure

Papiers filtres pour les laboratoires et l’industrie
fr 10.7 MB
Carte da filtro per il laboratorio e l’industria
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Filter Papers for the Laboratory and Industry
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宣传手册:实验室过滤产品精简目录
zh 19.0 MB

Catalog

Laboratory Filtration Products (US and Canada)
en 9.6 MB
Laboratory Filtration Products
en 21.9 MB

Applications

  • Area of Application
    • Clarification
    • Analytical Sample Preparation
    • Particle Analysis

Dimensions

  • Dimensions
    580 × 580 mm
  • Thickness
    0.15 mm

Features

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

Materials of Construction

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

Physicochemical Information

  • Grade
    391
  • Precipitations
    Very fine crystalline
  • Retention Rate
    2–3 µm

Product Information

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

Specifications

  • Filter Format
    Sheets
  • Filter Paper/Membrane Color
    White
  • Filtration Time
    180 s
  • Specifications
    Fine-pore, dense, very slow filtering

Weights

  • Weight
    84 g/m²