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Counting chambers Sedgewick Rafter

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
Cat. No.   Unit
0611300 precision type made of glass
with chromium deposited for phase contrast use
with ground and chamfered edges
1
0611400 single type made of plastic 1
0336000 spare cover glass approx. 60 x 30 x 1 mm 1

For many applications, particularly for some APHA methods and where larger plankton are being analysed, there is no requirement for a counting grid printed onto the slide. This is where the Sedgewick Rafter counting chamber with the plain glass base is deployed.

This chamber is suitable for either upright or inverted microscopes. It can be used in conjunction with an eyepiece reticle, such as the Whippie micrometer disc.

Cat. No.   Unit
0611500 chamber made of glass without grid, with cover glass 1
0336000 spare cover glass approx. 60x30x1 mm 1

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