• Sterile options available for critical applications.
  • Excellent contrast for easier particle detection.
  • Grids are nontoxic and do not inhibit bacterial growth, ensuring sample integrity.
  • Black plain and black gridded membranes have a mix of cellulose nitrate and cellulose acetate.
  • The membrane offers a high degree of internal surface area for greater adsorption of product.
  • Higher dirt loading capacity.
  • Biologically inert with good thermal stability.
  • No surfactants to contaminate samples.
  • Uniform microporous structure of membrane gives high flow rates.

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters. Also, the color contrast provided by the filter surface facilitates particle detection and minimizes eye fatigue. The ME range has a lower cellulose acetate content compared to the WME range of membranes.

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Product Product Name Price
10409772 Mixed Cellulose Ester Circle ME Range (ME 25), black/white grid 3.1 mm, sterile, 0.45 µm pore size, 50 mm Yes 100 pieces 50 mm No 156.08 USD Add to cart

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10409470 ME25/41 (Mixed Cellulose Ester) ST Membrane Circle, green, 47 mm 0.45 µm, 3.1 mm black grid, sterile Yes 100 pieces 47 mm No 153.41 USD Add to cart

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10409771 Mixed Cellulose Ester Circle ME Range (ME 25), black/white grid 3.1 mm, sterile, 0.45 µm pore size, 47 mm Yes 1000 pieces 47 mm No 912.00 USD Add to cart

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10409472 ME25/41 (Mixed Cellulose Ester) ST Membrane Circle, green, 50 mm 0.45 µm, 3.1 mm black grid, sterile Yes 100 pieces 50 mm No 156.08 USD Add to cart

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10409770 Mixed Cellulose Ester Circle ME Range (ME 25), black/white grid 3.1 mm, sterile, 0.45 µm pore size, 47 mm Yes 100 pieces 47 mm No 153.41 USD Add to cart

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10401672 Mixed Cellulose Ester Circle ME Range (ME 25), plain, sterile, 0.45 µm pore size, 50 mm Yes 100 pieces 50 mm No 156.08 USD Add to cart

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10401670 Mixed Cellulose Ester Circle ME Range (ME 25), plain, sterile, 0.45 µm pore size, 47 mm Yes 100 pieces 47 mm No 156.08 USD Add to cart

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10407372 ME25/41 (Mixed Cellulose Ester) STL Membrane Circle, green, 50 mm 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler No 400 pieces 50 mm Yes 514.00 USD Add to cart

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10406870 ME25/21 (Mixed Cellulose Ester) ST Membrane Circle, white, 47 mm 0.45 µm, 3.1 mm black grid, sterile Yes 100 pieces 47 mm No 50.63 USD Add to cart

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10407332 ME25/31 (Mixed Cellulose Ester) STL Membrane Circle, black, 47 mm 0.45 µm, 3.1 mm white grid, sterile, for Membrane-Butler No 400 pieces 47 mm Yes 509.00 USD Add to cart

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10407970 Mixed Cellulose Ester Circle ME Range (ME 25), white/black grid 3.1 mm, sterile, 0.45 µm pore size, 47 mm Yes 100 pieces 47 mm No 189.12 USD Add to cart

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10406872 ME25/21 (Mixed Cellulose Ester) ST Membrane Circle, white, 50 mm 0.45 µm, 3.1 mm black grid, sterile Yes 100 pieces 50 mm No 156.08 USD Add to cart

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10407370 ME25/41 (Mixed Cellulose Ester) STL Membrane Circle, green, 47mm 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler No 400 pieces 47 mm Yes 497.00 USD Add to cart

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10407334 ME25/31 (Mixed Cellulose Ester) STL Membrane Circle, black, 50 mm 0.45 µm, 3.1 mm white grid, sterile, for Membrane-Butler No 400 pieces 50 mm Yes 514.00 USD Add to cart

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10406871 Mixed Cellulose Ester Circle ME Range (ME 25), white/black grid 3.1 mm, sterile, 0.45 µm pore size, 47 mm Yes 1000 pieces 47 mm No 882.00 USD Add to cart

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10406800 ME25 SELECT/21 47MM ST 100/PK No 100 pieces 47 mm Yes Temporarily unavailable
7141-124 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, gridded, without pad, 47 mm, 200 pieces Yes 200 pieces 47 mm No 201.00 USD Add to cart

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10406801 ME25 SELECT/21 50MM ST 100/PK No 100 pieces 50 mm Yes Temporarily unavailable
7140-104 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, plain, with pad, 47 mm, 100 pieces No 100 pieces 161.32 USD Add to cart

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7153-104 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, black, gridded, with pad, 47 mm, 100 pieces Yes 100 pieces 47 mm No 230.00 USD Add to cart

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7141-104 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, gridded, with pad, 47 mm, 100 pieces Yes 100 pieces 47 mm No 104.01 USD Add to cart

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7141-154 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, gridded, without pad, 47 mm, 1000 pieces Yes 1000 pieces 47 mm No 576.00 USD Add to cart

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7187-114 Mixed Cellulose Ester Circle WME Range, 0.20 µm pore size, sterile, individually packed, white, gridded, without pad, 47 mm, 100 pieces Yes 100 pieces 47 mm No 121.56 USD Add to cart

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7141-114 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, gridded, without pad, 47 mm, 100 pieces Yes 100 pieces 47 mm No 104.01 USD Add to cart

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10406572 Mixed Cellulose Ester Circle ME Range (ME 25), white/black grid 5 mm, sterile, 0.45 µm pore size, 50 mm Yes 100 pieces 50 mm No 156.08 USD Add to cart

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10407324 ME25 (Mixed Cellulose Ester) Membrane Circle, white, 50 mm 0.45 µm, 5 mm black grid, sterile, for Membrane-Butler No 400 pieces 50 mm Yes 526.00 USD Add to cart

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10407314 ME25/21 (Mixed Cellulose Ester) STL Membrane Circle, white, 50 mm 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler No 400 pieces 50 mm Yes 514.00 USD Add to cart

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10407312 ME25/21 (Mixed Cellulose Ester) STL Membrane Circle, white, 47 mm 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler No 400 pieces 47 mm Yes 501.00 USD Add to cart

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10406803 ME25 Select 21 STL Circles, White, Mixed Esters, 47mm Dia, 0.45µm, 3.1mm Black Grid, Sterile, For Membrance Dispensers, 400/pk No 400 pieces 47 mm Yes Temporarily unavailable
10406802 ME25 SELECT/21 STL 50MM 400/PK No 400 pieces 50 mm Yes Temporarily unavailable

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