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Whatman™ 1440-150
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Whatman™ Grade 40 Ashless Qualitative Filter Paper, 150 mm dia

Qualitative Filter Paper, Grade 40, 150 mm dia, High-quality Cotton Linters, 210 µm Nominal Thickness, 25 ml/min Water Flow Rate, 21 sec/100 ml/sq in Nominal Air Flow Rate, Medium Particle Retention, Circle Format, For Soil Analysis

  • Manufacturer Part No: 1440-150
  • SECO Part No: 12-4810-07
  • Sold As:
  • Availability: loading

Whatman grade 40 high-purity filters from GE Healthcare's life sciences business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.

Diameter : 150 mm
Grade : 40
Material (ml/min) : High-quality Cotton Linters
Type : Ashless
Format : Circle
Nominal Air Flow Rate : 21 sec/100 ml/sq in
Nominal Basis Weight : 95 g/m2
Application : For Soil Analysis, Quantitative Determination of Milk Sediment, Collection of Trace Elements And Radionuclides
Nominal Ash Content : 0.007%
Nominal Thickness : 210 µm
Particle Retention : Medium
Typical Particle Retention in Liquid : 8 µm
Water Flow Rate : 25 ml/min
  • High-purity filters contain 0.007% maximum ash content
  • Medium nominal particle retention rating of 8 µm
  • Medium filtration speed (Herzberg 340 s)
  • Particularly useful for gravimetric analysis
  • Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
  • =98% Minimum alpha cellulose content

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