Whatman™ Quantitative Filter Papers, Ashless Grades (Ash 0.007%), Grade 40

Supplier: GE Healthcare - Whatman
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1440-042 1440-055 1440-070 1440-090 1440-110 1440-125 1440-150 1440-185 1440-240 1440-329 1440-047 1440-320 1440-032 1440-012 1440-6168 1440-917 10380004 10380005 10380006
28475-004PK 46.05 USD
28475-004 28475-015 28475-026 28475-048 28475-060 28475-081 28475-106 28475-128 28475-140 80080-586 11008-520 70240-042 89203-510 10035-258 10035-260 10147-982 76292-858 76292-860 76292-862
Whatman™ Quantitative Filter Papers, Ashless Grades (Ash 0.007%), Grade 40
Filters Filter Paper Quantitative Filter Paper
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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