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25 mm Purple Dot Quantitative Filter Paper Discs / Grade 393

These 25 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-3-127-025

Price:  $10.00

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 1.5 MB
Papiers filtres pour les laboratoires et l’industrie
fr 1.4 MB
Carte da filtro per il laboratorio e l’industria
it 1.4 MB
赛多利斯 实验室过滤产品 精简目录
zh 2.9 MB

Catalog

Laboratory Filtration Products
en 17.2 MB

Applications

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

Dimensions

  • Filter Diameter
    ⌀ 25 mm

General Specifications

  • Filter Format
    Discs
  • Filter Paper/Membrane Color
    White
  • Filtration Time
    300 s
  • Grade
    393
  • Specifications
    • Very fine-pore, very dense, very slow filtering
    • very dense
    • very slow filtering
  • Thickness
    0.17 mm

Materials of Construction

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

Physicochemical Information

  • Precipitations
    Very fine crystalline
  • Retention Rate
    1 µm

Product Information

  • Filter Type
    Quantitative Filter Papers