Gridded Membrane Filter

Membrane solutions supply a series of microbial gridded membrane Filters which are using in obstructing microorganism by different pore size, for enriching or analysis. The filters are available in Microdisc(individual pack) and Microflm(continuous pack). The filters are made of mixed cellulose ester (MCE) gridded membrane filter, which are composed of cellulose acetate and cellulose nitrate. Because MCE membrane is biologically inert, it's one of the most widely used membranes in analytical and research applications. MCE membrane filter is characterized by a smoother and more uniform surface than pure nitrocellulose filter.
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Specs Number Description Price

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 Microbial Analysis Testing Product Range

Features

  • High recovery rates for microorganisms
  • Comply to lSO 7704:2023
  • Bacterial challenge: LRV{>}7
  • Excellent flow rate for different liquids
  • Microbiological"friendly" ink promotes growth on grids to maximize recovery
  • Pre-Steriled by gamma ray, shelf life is 3 years
  • Detailed quality certificate offered lot by lot

Applications

  • Microorganism testing when usingthe"membrane filtration technique" for solid, liquid or air samples
  • Particularly for liquid samples in food hygiene or water testing in colony counting, F.coliforms or E,coli, sterility testing, pseudomonas aeruginosa staphylococcus aureus, etc.
  • General microscopy
  • Particulate countingand analysis

Technical Parameters

Filter Medium MCE/CN/PES
Diameter (mm) 25/37/47/50
Pore Size (um) 0.22/0.45/0.65/0.8/1.0/5.0/8.0
Membrane Grid Color White/Black
Black/White
Wettability Hydrophilic
Sterile Yes(Gamma irradiated)
Packing Style Continuous and Individual
Surface Gridded
Dl Water Flow Rate @ 25℃,-10psi(ml/min/cm²) ≥15/≥40/≥100
Thickness(um) 90-110
Bacteria Retention

＞1x107CFU/cm2(Pseudomonas diminuta, ATCC19146)

Challenge (0.2μm)

＞1x107CFU/cm2(Serratia marcescens,ATCC14756)

Challenge (0.45μm)
Microbiological Recovery Rate ≥90%

FAQ