لام سدویک رافتر

لام سدویک رافتر مخصوص شمارش میکرو ارگانیزمها و جلبکها در آب و فاضلاب، یا شمارش ریسه ها در رب می باشند.

S52 – Glass Sedgewick Rafter Counting Chamber

Description

A serious reusable tool for the professional user. The cell is made of high quality optical glass with a chromium surface image. It is intended for continued professional use and whenever using phase contrast.

Pictures can be different from original

SEDGLAS

Important Note. Lugols, the compound that is often used in these analyses, is very aggressive. It is best to keep the time that lugols spends in the chamber to a minimum and then it should be washed out promptly and thoroughly using normal laboratory soap solutions. Do not use heat in the analysis or drying process

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
9.903.200 spare cover glass approx. 60 x 30 x 1 mm 1
9.900.200 precision type made of glass
with chromium deposited for phase contrast use
with ground and chamfered edges
1
9.902.200 single type made of plastic 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
9.903.200 spare cover glass approx. 60x30x1 m 1
9.906.200 chamber made of glass without grid, with cover glass 1

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