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Counting Chambers

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Information about our counting chambers

Counting chambers with V-slash

the V-slash facilitates the feeding of the capillary gap between chamber bottom and haemacytometer cover glass, the risk of overflow is reduced

Counting chambers

to determine the number of particles in liquids

Counting chambers with special depth (Petroff)

system Neubauer-improved with special depth 0.01 mm resp. 0.02 mm

Counting chambers Howard

for the investigation of fruit juices, depth of chamber: approx. 0.1 mm

Counting chambers McMaster with 3 grids

for counting worm eggs, suitable for liquid media, dimensions: approx. 127 x 26 mm

Counting chambers McMaster with 2 grids

for counting worm eggs, suitable for solid media, dimensions: approx. 75 x 32 mm

Counting chambers Sedgewick Rafter

intended for counting of particles and microorganisms in water or other transparent liquids.

Haemacytometers

Complete set in a plastic case

Cellcounter

The electronic blood counter is designed for counting blood cells, but is also appropriate for counting any other particles

Counting chambers

Marienfeld Superior counting chambers are precise measuring instruments to determine the number of particles in liquids.

made of special optical glass in compliance with DIN ISO 12 847
individually tested according to the German Calibration Ordinance
planarity and tolerances are strictly observed
tolerance of depth of chamber max. 2 %
our counting chambers for investigations of cell suspensions are equipped with 2 sets of grids. In-vitro diagnostic (IVD) applications generally require duplicate determinations. Double counting grids = double check possibility.
a cover glass with a thickness of 0.4 mm is placed on top of both external stages of the counting chamber to limit the volume over the counting grids
2 haemacytometer cover glasses with thickness 0.4 mm are supplied with each counting chamber. For spare cover glasses please see here.
in general, we recommend haemacytometer cover glasses 20 x 26 mm. Counting chambers Fuchs-Rosenthal require cover glasses 24 x 24 mm and counting chambers Nageotte require cover glasses 22 x 30 mm or 30 x 30 mm. Thinner cover slips should not be used as they bend because of the capillary forces
individually packed in transparent plastic box, 10 pcs. in a carton
counting grids are engraved into two ground and polished surfaces on the central stage (= chamber bottom). This central stage is located between two elevated also ground and polished stages.
Dark line:
Standard counting chambers have counting grids which are engraved into the chamber bottom. Under the microscope the lines of the counting grid appear dark.
Bright line:
Bright lined counting chambers have counting grids which are structured into a very thin, transparent metal coating. The bright lines contrast well with the dark metallic background and this facilitates evaluating cell suspensions.