Quantitative filter papers, ashless grades, grade 40, Whatman™

Leverantör: Whatman products (Cytiva)
1440-032 1440-042 1440-047 1440-055 1440-070 1440-090 1440-110 1440-125 1440-150 1440-185 1440-240 1440-917 1440-012 1440-320 1440-329 1440-6168 10380004 10380005 10380006
514-0579EA 360 SEK
514-0579 516-4101 514-0580 512-0308 512-0309 512-0310 512-0311 512-0312 512-0313 512-0314 512-0315 512-0651 514-0591 514-0592 514-0593 514-0594 WHAT10380004 WHAT10380005 WHAT10380006
Quantitative filter papers, ashless grades, grade 40, Whatman™
Filter Filterpapper Kvantitativt filterpapper
Whatman Grade 40 high-purity filters from Cytiva's business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.

  • 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

High-purity filters support accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis where ash content might affect weight measurements of combusted samples.

Cytiva's high-purity Whatman Grade 40 ashless paper is suited to:
- Soil analysis, when separating solid matter from aqueous extracts
- Quantitative determination of milk sediment
- Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
- Analysis of constituent components in cements, clays, iron, and steel products
- Collection of trace elements and radionuclides from the atmosphere
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