Consumable

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Method
The liquid is filtered through a membrane. The microorganisms collect on the membrane surface. The filter is incubated on a nutrient medium and the individual colonies can then be evaluated. The method is also suitable for large sample volumes and low microorganism counts.

Reliability
The quality control and product design of our membrane filters are strictly controlled and offer users significant advantages.

Test parameters
All membranes used for microbiological quality control are tested systematically in order to ensure the same high quality from batch to batch. Parameters tested are bubble point, flow rate, bacterial retention, recovery rate, and sterility.

MicroPlus Membranes

Features and benefits
ㆍSpecial membrane filters made from cellulose nitrate developed for microbiological quality control
ㆍHigh mechanical strength
ㆍHigh flow rate
ㆍSterile, individually packed
ㆍAll membrane filters have a high-contrast grid (3.1 mm)
ㆍType STL in dispenser boxes with 100 numbered membrane filters for easy removal and safe handling with the Membrane-Butler (supplied in 4 boxes each with 100 membrane filters)

ME Membranes

Features and benefits
ㆍMade from mixed cellulose esters
ㆍEconomical
ㆍSpecifically for aqueous solutions
ㆍHydrophilic
ㆍFor use up to 125ºC
ㆍSterile, individually packed
ㆍAll membrane filters have a high-contrast grid (3.1 mm)
ㆍType STL in dispenser boxes with 100 numbered membrane filters for easy removal and safe handling with the Membrane-Butler (supplied in 4 boxes each with 100 membrane filters)

For a wider choice of membranes, please refer to the Membrane Filters section.

 

Ordering Information - MicroPlus and ME Membranes
Catalog Number Description
MicroPlus (Cellulose Nitrate)
10407112 MicroPlus-21 STL membrane circles white, 47 mm, cellulose nitrate, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10407114 MicroPlus-21 STL membrane circles white, 50 mm, cellulose nitrate, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10407713 MicroPlus-21 ST membrane circles white, 47 mm, cellulose nitrate, 0.45 µm, 3.1 mm black grid, sterile, 100/pk
10407714 MicroPlus-21 ST membrane circles white, 50 mm, cellulose nitrate, 0.45 µm, 3.1 mm black grid, sterile, 100/pk
10407132 MicroPlus-31 STL membrane circles black, 47 mm, cellulose nitrate, 0.45 µm, 3.1 mm white grid, sterile, for Membrane-Butler, 400/pk
10407134 MicroPlus-31 STL membrane circles black, 50 mm, cellulose nitrate, 0.45 µm, 3.1 mm white grid, sterile, for Membrane-Butler, 400/pk
10407734 MicroPlus-31 ST membrane circles black, 50 mm, cellulose nitrate, 0.45 µm, 3.1 mm white grid, sterile, 100/pk
10407170 MicroPlus-41 STL membrane circles green, 47 mm, cellulose nitrate, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10407172 MicroPlus-41 STL membrane circles green, 50 mm, cellulose nitrate, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
ME (Mixed Cellulose Ester)
10407312 ME25/21 STL membrane circles white, 47 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10407314 ME25/21 STL membrane circles white, 50 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10406870 ME25/21 ST membrane circles white, 47 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, 100/pk
10406871 ME25/21 ST membrane circles white, 47 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, 1000/pk
10406872 ME25/21 ST membrane circles white, 50 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, 100/pk
10406873 ME25/21 ST membrane circles white, 50 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, 1000/pk
10407332 ME25/31 STL membrane circles black, 47 mm, mixed esters, 0.45 µm, 3.1 mm white grid, sterile, for Membrane-Butler, 400/pk
10407334 ME25/31 STL membrane circles black, 50 mm, mixed esters, 0.45 µm, 3.1 mm white grid, sterile, for Membrane-Butler, 400/pk
10407370 ME25/41 STL membrane circles green, 47mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10407372 ME25/41 STL membrane circles green, 50 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, for Membrane-Butler, 400/pk
10409470 ME25/41 ST membrane circles green, 47 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, 100/pk
10409472 ME25/41 ST membrane circles green, 50 mm, mixed esters, 0.45 µm, 3.1 mm black grid, sterile, 100/pk
10408712 ME24 membrane circles white, 47 mm, mixed esters, 0.2 µm, 3.1 mm black grid, sterile, for Membrane Butler, 400/pk
10408714 ME24 membrane circles white, 50 mm, mixed esters, 0.2 µm, 3.1 mm black grid, sterile, for Membrane Butler, 400/pk
10407324 ME25 membrane circles white, 50 mm, mixed esters, 0.45 µm, 5 mm black grid, sterile, for Membrane Butler, 400/pk
10408915 ME27 membrane circles white, 50 mm, mixed esters, 0.8 µm, 3.1 mm black grid, sterile, for Membrane Butler, 100/pk

 

 

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