Cover Glasses

Cover glasses (coverslips)

Cover glasses thickness No. 101.Stülpschachtel_neu

Marienfeld Superior cover glasses feature an excellent flatness and smooth surfaces thanks to the best material. No cover glasses made of soda lime glass match the quality of our borosilicate glass coverslips. Even when archived for years preparations keep their optical quality thanks to our noncorroding glass and the particularly low tolerance of the material thickness.Our precise machining processes make sure that our coverslips have the exact size and their edges are cut with high precision. All of our efficient processes include a stringent, integrated quality control and thus ensure high quality coverslips which do not stick together.

01.Schachtel MixOur coverslips are ready for use and well suited for application in automated coverslippers. All these characteristics result in significant advantages for the user.

  • made of chemically resistant borosilicate glass D 263™ M of the first hydrolytic class
  • absolutely colourless, perfectly clear, suitable for fluorescence microscopy
  • in compliance with DIN ISO 8255
  • thickness No. 1 (0.13 to 0.16 mm)
  • in boxes made of plastic, 10 boxes in a carton
  • approved for in-vitro diagnostic (IVD) applications according to IVD directive 98/79/EC, with CE – mark and batch number for comprehensive information and traceability

Hinged lid boxes containing 200 or 100 pieces:

Cat. No. Size
0101052 22 x 22 mm
0101062 24 x 24 mm
0101092 21 x 26 mm
0101102 22 x 30 mm
0101112 22 x 32 mm
0101122 22 x 40 mm
0101142 22 x 50 mm
0101152 22 x 60 mm
0101172 24 x 32 mm
0101182 24 x 36 mm
0101192 24 x 40 mm
0101202 24 x 46 mm
0101212 24 x 48 mm
0101222 24 x 50 mm
0101232 24 x 55 mm
0101242 24 x 60 mm

Two-part boxes containing 100 pieces:

Cat. No. Size
0101000 12 x 12 mm
0101010 15 x 15 mm
0101020 16 x 16 mm
0101030 18 x 18 mm
0101040 20 x 20 mm
0101050 22 x 22 mm
0101060 24 x 24 mm

01.Scharnier APrecision cover glasses thickness No. 1.5H (tol. ± 5 μm) for high performance microscopes

Modern high-performance microscope objectives are designed to be used with cover glasses of a thickness of 170 μm. The quality of the cover glass, in particular the compliance with the nominal thickness, has thereby a crucial impact on the imaging quality. Variations of thickness reduce the image contrast and result in image defects, most notably in spherical aberration. We produce high-precision cover glasses with thickness No. 1.5H featuring an exceptionally accurate thickness of 170 μm ± 5 μm. This new generation of cover glasses are highly recommended for objectives with high numerical aperture and high resolution, for example:

  • dry objectives: N.A. > 0.7
  • objectives for water immersion: N.A. > 1.0
  • objectives for glycerol immersion: N.A. > 1.2
  • objectives for oil immersion: N.A. > 1.3
  • made of chemically resistant borosilicate glass D 263™ M of the first hydrolytic class
  • absolutely colourless, perfectly clear, suitable for fluorescence microscopy
  • in compliance with DIN ISO 8255
  • thickness No. 1.5H (0.170 mm ± 0.005 mm)
  • approved for in-vitro diagnostic (IVD) applications according to IVD directive 98/79/EC, with CE – mark and batch number for comprehensive information and traceability

Hinged lid boxes containing 200 or 100 pieces Minimum quantity is 2000 pieces per size and order.:

Cat. No. Size
0107032 18 x 18 mm
0107052 22 x 22 mm
0107222 24 x 50 mm
0107242 24 x 60 mm

Two-part boxes containing 100 pieces Minimum quantity is 1000 pieces per order.:

Cat. No. Size
0117500 10 mm Ø
0117520 12 mm Ø
0117530 13 mm Ø
0117580 18 mm Ø
0117640 24 mm Ø
0117650 25 mm Ø

03.500Cover glasses 0.4 mm for counting chambers and haemacytometers

Haemacytometer cover glasses are used to cover specimens in counting chambers. The haemacytometer cover glass is placed on the outer bearings’ surfaces and due to their flatness adheres very well. Thus it forms an exact capillary gap and defines the volume of the cell suspension over the counting grid. On our website you will find more detailed information under the keyword counting chambers. Additonal feature: The excellent quality of their edges make our haemacytometer cover glasses well suitable for blood smears.

  • made of special optical glass
  • ready for use
  • ground and polished edges
  • individually packed in poly bags, 10 pieces in a plastic box, 10 plastic boxes in a cardboard box

Approved for in-vitro diagnostic (IVD) applications according to IVD directive 98/79/EC, with CE-mark and batch number for comprehensive information and traceability:

Cat. No. Size
0350000 20 x 26 mm
0351000 22 x 22 mm
0352000 24 x 24 mm

66.330.02Cover glass forceps according to Kuehne

Made of nickel-plated steel, bent shape

Cat. No. Length
6633002 105 mm

Click here for additional information on cover glasses

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11 McDougall Street
Kotara, NSW, 2289
Free Call:1800 021 083

e. sales@austscientific.com.au