Our high-purity Whatman ashless Grade 42 quantitative filter papers are suitable for a wide range of critical analytical filtration procedures for quantitative analysis. Grade 42 filter papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

  • Ashless: 0.007% ash maximum
  • Fine (2.5 μm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
  • Herzberg filtration speed of 1870 s
  • Commonly used as a calcium carbonate filter
  • Particularly suitable for gravimetric analysis

Whatman Grade 42 quantitative papers from Cytiva business are designed for retention of extremely small particles. A common example is use of Grade 42 as a calcium carbonate filter for analysis in the cement industry.

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Product Product Name Price
1442-042 Grade 42 Ashless Filter Paper for Instrumental Analysis, 42.5 mm circle (100 pcs) Ø 42.5 mm 21.93 USD Add to cart Get Quote

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1442-047 Grade 42 Ashless Filter Paper for Instrumental Analysis, 47 mm circle (100 pcs) Ø 47 mm 28.41 USD Add to cart Get Quote

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1442-055 Grade 42 Ashless Filter Paper for Instrumental Analysis, 55 mm circle (100 pcs) Ø 55 mm 25.81 USD Add to cart Get Quote

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1442-070 Grade 42 Ashless Filter Paper for Instrumental Analysis, 70 mm circle (100 pcs) Ø 70 mm 30.91 USD Add to cart Get Quote

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1442-090 Grade 42 Ashless Filter Paper for Instrumental Analysis, 90 mm circle (100 pcs) Ø 90 mm 41.23 USD Add to cart Get Quote

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1442-10055 Grade 42 Ashless filter paper for instrumental analysis, 79 mm, circle, (100 pcs) Ø 79 mm 20.40 USD Add to cart Get Quote

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1442-110 Grade 42 Ashless Filter Paper for Instrumental Analysis, 110 mm circle (100 pcs) Ø 110 mm 50.37 USD Add to cart Get Quote

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1442-125 Grade 42 Ashless Filter Paper for Instrumental Analysis, 125 mm circle (100 pcs) Ø 125 mm 58.09 USD Add to cart Get Quote

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1442-150 Grade 42 Ashless Filter Paper for Instrumental Analysis, 150 mm circle (100 pcs) Ø 150 mm 73.53 USD Add to cart Get Quote

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1442-185 Grade 42 Ashless Filter Paper for Instrumental Analysis, 185 mm circle (100 pcs) Ø 185 mm 108.29 USD Add to cart Get Quote

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1442-240 Grade 42 Ashless Filter Paper for Instrumental Analysis, 240 mm circle (100 pcs) Ø 240 mm 173.22 USD Add to cart Get Quote

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1442-320 Grade 42 Ashless Filter Paper for Instrumental Analysis, 320 mm circle (100 pcs) Ø 320 mm 355.00 USD Add to cart Get Quote

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1442-6551 Grade 42 Quantitative Filter Paper Ashless (Ash 0.007%), sheet, 25.4 × 90 mm 25.4 x 90 mm 70.91 USD Add to cart Get Quote

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1442-917 Grade 42 Ashless Filter Paper for Instrumental Analysis, 460 × 570 mm sheet (100 pcs) 460 x 570 mm 735.00 USD Add to cart Get Quote

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1442-971 Grade 42 Ashless Filter Paper for Instrumental Analysis, Flag sheet (100 pcs) Flag 40.08 USD Add to cart Get Quote

In Stock Stock on request Limited stock

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