COUNTING CHAMBER PROVIDED WITH A REFERENCE AND METHOD FOR MANUFACTURING A COUNTING CHAMBER PROVIDED WITH A REFERENCE

摘要

A counting chamber for optical detection of particles that are present in a fluid, comprising two substantially transparent and substantially parallel plates of material (1, 2), between which the fluid can be introduced. At least one of said plates (1) includes a visible reference (8), which comprises a relief formed on the surface of one of said plates (1).