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Ester Membranes 08

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Negara Asal United States
Merek Whatman
Update Terakhir 05 Apr 2019
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Detil Produk Ester Membranes 08

Alat Laboratorium UmumSterile Mixed Cellulose Ester Membranes, 0.8 µm 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
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Detil Produk

Alat Laboratorium Umum

Sterile Mixed Cellulose Ester Membranes, 0.8 µm

 

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.

Eased counting process
In microbiological colony counting procedures, the color contrast between the surface and the colonies facilitates the counting process.

Plain or gridded
Many microbiological techniques include colony counting after incubation as the standard method of quantitation. Whatman gridded filters have clearly defined grid lines spaced at 3.1 mm or 5 mm intervals. The special ink used is nontoxic and completely free from bacterial growth inhibitors. Whatman black mixed cellulose esters are available plain for automatic colony counting applications, as well as gridded to assist in manual counting procedures. Black membranes provide contrast between residue or cell colors and the filter without having to counter-stain the membrane.

Sterile filters
For those laboratories preferring to use membranes sterilized by autoclaving for microbiological work, Whatman provides black gridded membranes in packs with pads ready for laboratory autoclaving.

Specification

 

Mixed Cellulose Ester Circle ME Range (ME 27), green/black grid 3.1 mm, sterile, 0.8 µm pore size, 50 mm

Air Flow Rate [Delta p equals 3 mbar]11.6 s/100 ml
AutoclavableYes
ColorGreen
For Membrane ButlerNo
Grid Dimension3.1 mm
Interleaving PaperYes
MaterialMixed Cellulose Ester (MCE)
Membrane TypeME 27
Operating Temp. Max.130°C
Pore Size0.8 µm
Porosity Max.77%
Porosity Min.74%
Protein BindingMedium
Solvent ResistanceMedium
SterilitySterile
Water Flow Rate [Delta p equals 0.9 bar]2.8 s/100 ml/12.5 cm2
Weight Max.5.0 mg/cm2
Weight Min.

4.3 mg/cm2

 

 

 

 

Features

Product code: 10405672
 

Mixed cellulose ester membrane, ME 27, green/black grid, 3.1 mm, sterile, 0.8 µm, 50 mm

  • 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.