BLAUBRAND®. Double ruling. With or without snap-on clips. Cell depth 0.1mm. Combination of the Bürker and Thoma systems. The chamber depth is 0.1 mm. The ruling shows 9 large squares of 1 mm2 each. The large squares are subdivided into 16 group squares with 0.2 mm sides. In the central large square, each group square is subdivided into 16 mini squares with 0.05 mm sides (= 0.0025 mm2). For research and development only.
