Counting chamber Neubauer-improved dark line
The counting chambers serve to determine the number of particles per volume unit of a liquid. The particles (e.g. leucocytes, erythrocytes, thrombocytes, bacteria, fungus spores, pollen) are visually counted under a microscope. The types of counting chambers differ in counting grids and the depths of the chambers. Orthogonal lines form grids which become visible by magnifying them with a microscope. The grid of a counting chamber is engraved into the surface of its base.
NeubauerImproved :
double ruling, with or without spring clips
The ruling shows 9 large squares of 1 mm² each.
The four large squares in the corners marked "L" for counting leucocytes are each subdivided into 16 squares with 0.25 mm sides. The large square in the center is subdivided into 16 squares with 0.25 mm sides.
The large square in the center is subdivided in to 25 group squares of 0.2 mm sides. Each group square consists of 16 mini squares with 0.05 mm sides, each having an area of 0.0025 mm².
The 5 group squares in the large central square are used for counting thrombocytes and erythrocytes. All group squares have triple boundary lines on each side. The central line is the limiting line and determines weather cells in the marginal area shall be included in the count or not.
CE-marked according to IVD-Directive 98/79 CE.
Iso Code | PCE |
---|---|
Manufacturer reference | 0640010 |
ISO code | PCE |
eclass | 32030000 |
UNSPSC code | 41122604 |
Brand | Marienfeld |
Sales Unit | 1 Piece |
Grid | Dark line |
Reference | A03607 |
Finish | Without clamps |
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