血细胞计数板, Fuchs-Rosenthal 型, BLAUBRAND^®, 双线型

The ruling differs from the customary systems for blood cell counts by its large area of 16 mm2.

The ruling shows 16 large squares of 1 mm2. Each large square is subdivided into 16 mini squares with 0.25 mm sides and an area of 0.0625 mm2.
This chamber is frequently used for counting cells in the cerebro-spinal fluid.