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.

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Product Product Name Price
1540-042 Grade 540 Ashless General Lab Filter Paper, 42.5 mm circles (100 pcs) 42.5 mm 23.18 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-055 Grade 540 Ashless General Lab Filter Paper, 55 mm circles (100 pcs) 55 mm 25.82 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-090 Grade 540 Ashless General Lab Filter Paper, 90 mm circles (100 pcs) 90 mm 42.63 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-110 Grade 540 Ashless General Lab Filter Paper, 110 mm circles (100 pcs) 110 mm 51.60 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-125 Grade 540 Ashless General Lab Filter Paper, 125 mm circles (100 pcs) 125 mm 59.33 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-150 Grade 540 Ashless General Lab Filter Paper, 150 mm circles (100 pcs) 150 mm 83.86 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-185 Grade 540 Ashless General Lab Filter Paper, 185 mm circles (100 pcs) 185 mm 123.87 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-240 Grade 540 Ashless General Lab Filter Paper, 240 mm circles (100 pcs) 240 mm 189.40 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-320 Grade 540 Ashless General Lab Filter Paper, 320 mm circles (100 pcs) 320 mm 404.00 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-321 Grade 540 Ashless General Lab Filter Paper, 21 mm circles (100 pcs) 21 mm 23.18 USD Add to cart Get Quote

In Stock Stock on request Limited stock

1540-324 Grade 540 Ashless General Lab Filter Paper, 24 mm circles (100 pcs) 24 mm 23.17 USD Add to cart Get Quote

In Stock Stock on request Limited stock

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