Counting chambers acc. to Sedgewick Rafter are intended for counting of particles and microorganisms in water or other transparent liquids.
- the cell of 50 x 20 x 1 mm (= 1 cm³) is ruled in a 1 mm grid subdividing 1 ml in 1000 μl
- supplied with cover glass approx. 60 x 30 x 1 mm
