Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight.

  • Accurate ash free dry mass measurements
  • Fine nominal particle retention rating of 3 µm
  • Filtration speed (Herzberg 995 s)
  • Typical thickness of 180 µm

Cytiva's business offers other ashless grades with different particle retention ratings, as well as hardened ashless grades to ensure accurate measurement during analyses of samples that are strongly acidic/alkali.

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Product Product Name Price
1444-150 Grade 44 Ashless Filter Paper, Thin, 150 mm circle (100 pcs) Ø 150 mm 90.05 USD Add to cart


1444-090 Grade 44 Ashless Filter Paper, Thin, 90 mm circle (100 pcs) Ø 90 mm 50.50 USD Add to cart


1444-125 Grade 44 Ashless Filter Paper, Thin, 125 mm circle (100 pcs) Ø 125 mm 71.14 USD Add to cart


1444-070 Grade 44 Ashless Filter Paper, Thin, 70 mm circle (100 pcs) Ø 70 mm 36.30 USD Add to cart


1444-110 Grade 44 Ashless Filter Paper, Thin, 110 mm circle (100 pcs) Ø 110 mm 61.68 USD Add to cart


1444-185 Grade 44 Ashless Filter Paper, Thin, 185 mm circle (100 pcs) Ø 185 mm 132.63 USD Add to cart


1444-240 Grade 44 Ashless Filter Paper, Thin, 240 mm circle (100 pcs) Ø 240 mm 211.00 USD Add to cart


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