Counting Chambers  Manufacturers, Traders, Suppliers

Counting chambers made of special optical glass
Assistent® counting chambers are precision measuring instruments. They are used to count the number of particles per volume unit of a liquid. The counting chambers are supplied with CE mark as per IVD directive 98/79/EC. Counting chambers without CE mark are available for use outside the European Union only.
The size of the counting chambers is approx. 76 x 32 mm. The lateral fields for inscription are separated by grooves from the three ground and polished supports. The central support is deeper than the outer ones and is referred to as "depth of chamber". The depth (tolerance ± 2 %) depends on the ruling - see descriptions of individual articles. The rulings are engraved into the central support. Countin chambers with double ruling are common. The central support of those chambers is divided by an additional groove.
Bright-line counting chambers have the center support coated in a rhodium layer wherein the rulings are engraved. The coating provides a sharp contrast and the lines appear brightly illuminated.

Dimensions: approx. 76 x 32 mm
Thickness: max. approx. 4,5 mm
Depth of chamber: see article, special depths possible
Packing: Counting chamber, 2 optically plane cover glasses, in a transparent plastic box

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