Cytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.
- Acid-treated for high wet-strength
- Extremely low ash content (0.006% ash maximum)
- Nominal particle retention of 8 µm
- Medium flow rate (Herzberg filtration speed 200 s)
- High chemical resistance to strong acid and alkali suspensions
Cytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes Grade 542 for retention of fine precipitates and Grade 541 for fast filtration. All three grades are designed for use in gravimetric analysis.
Read moreProduct | Product Name | Price | ||
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1540-110 | Grade 540 Ashless General Lab Filter Paper, 110 mm circles (100 pcs) | 110 mm | 63.20 USD |
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1540-240 | Grade 540 Ashless General Lab Filter Paper, 240 mm circles (100 pcs) | 240 mm | 232.00 USD |
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1540-320 | Grade 540 Ashless General Lab Filter Paper, 320 mm circles (100 pcs) | 320 mm | 495.00 USD |
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1540-321 | Grade 540 Ashless General Lab Filter Paper, 21 mm circles (100 pcs) | 21 mm | 28.38 USD |
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1540-042 | Grade 540 Ashless General Lab Filter Paper, 42.5 mm circles (100 pcs) | 42.5 mm | 28.38 USD |
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1540-090 | Grade 540 Ashless General Lab Filter Paper, 90 mm circles (100 pcs) | 90 mm | 52.21 USD |
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1540-125 | Grade 540 Ashless General Lab Filter Paper, 125 mm circles (100 pcs) | 125 mm | 72.66 USD |
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1540-055 | Grade 540 Ashless General Lab Filter Paper, 55 mm circles (100 pcs) | 55 mm | 31.62 USD |
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1540-185 | Grade 540 Ashless General Lab Filter Paper, 185 mm circles (100 pcs) | 185 mm | 151.71 USD |
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1540-150 | Grade 540 Ashless General Lab Filter Paper, 150 mm circles (100 pcs) | 150 mm | 102.71 USD |
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1540-324 | Grade 540 Ashless General Lab Filter Paper, 24 mm circles (100 pcs) | 24 mm | 28.37 USD |
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