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 |
|---|---|---|
| 0336000 | spare cover glass approx. 60 x 30 x 1 mm | 1 |
| 0611300 | precision type made of glass with chromium deposited for phase contrast use with ground and chamfered edges |
1 |
| 0611400 | simple type made of plastic Overall Dimensions 76mm x 40mm x 2mm thick Chamber Dimensions 50mm x 20mm x 1mm deep Volume 1 ml |
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 |
|---|---|---|
| 0336000 | spare cover glass approx. 60 x 30 x 1 mm | 1 |
| 0611500 | chamber made of glass without grid, with cover glass | 1 |