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
Cytiva offers a range of Whatman ashless filter paper for your gravimetric analysis needs. See our other ashless grades to find the right filter for your sample, or use our hardened ashless grades if your analysis involves strong acid/alkali suspensions.
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1440-032 | Grade 40 Ashless Filter Paper for Pollution Analysis, 32 mm circle (100 pcs) | Ø 32 mm | 30.05 USD |
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1440-042 | Grade 40 Ashless Filter Paper for Pollution Analysis, 42.5 mm circle (100 pcs) | Ø 42.5 mm | 31.61 USD |
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1440-012 | Grade 40 Ashless Filter Paper for Pollution Analysis, 12.7 mm circle (400 pcs) | Ø 12.7 mm | 26.85 USD |
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1440-110 | Grade 40 Ashless Filter Paper for Pollution Analysis, 110 mm circle (100 pcs) | Ø 110 mm | 59.97 USD |
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1440-6168 | Grade 40 Ashless Filter Paper for Pollution Analysis, 450 mm circle (100 pcs) | Ø 450 mm | 519.00 USD |
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1440-070 | Grade 40 Ashless Filter Paper for Pollution Analysis, 70 mm circle (100 pcs) | Ø 70 mm | 36.30 USD |
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1440-185 | Grade 40 Ashless Filter Paper for Pollution Analysis, 185 mm circle (100 pcs) | Ø 185 mm | 132.64 USD |
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1440-150 | Grade 40 Ashless Filter Paper for Pollution Analysis, 150 mm circle (100 pcs) | Ø 150 mm | 90.06 USD |
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1440-240 | Grade 40 Ashless Filter Paper for Pollution Analysis, 240 mm circle (100 pcs) | Ø 240 mm | 211.00 USD |
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1440-917 | Grade 40 Ashless Filter Paper for Pollution Analysis, 460 × 570 mm sheet (100 pcs) | 460 x 570 mm | 901.00 USD |
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1440-125 | Grade 40 Ashless Filter Paper for Pollution Analysis, 125 mm circle (100 pcs) | Ø 125 mm | 67.91 USD |
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1440-320 | Grade 40 Ashless Filter Paper for Pollution Analysis, 320 mm circle (100 pcs) | Ø 320 mm | 436.00 USD |
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1440-047 | Grade 40 Ashless Filter Paper for Pollution Analysis, 47 mm circle (100 pcs) | Ø 47 mm | 33.12 USD |
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1440-055 | Grade 40 Ashless Filter Paper for Pollution Analysis, 55 mm circle (100 pcs) | Ø 55 mm | 34.79 USD |
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1440-090 | Grade 40 Ashless Filter Paper for Pollution Analysis, 90 mm circle (100 pcs) | Ø 90 mm | 50.50 USD |
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1440-329 | Grade 40 Ashless Filter Paper for Pollution Analysis, 30 mm circle (100 pcs) | Ø 30 mm | 25.33 USD |
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