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Durham test tubes are mainly used in microbiology to detect gas produced by micro organisms. These special tubes are placed upside down in bigger test tubes.

• Made of soda lime glass
• With straight rim and with round bottom
• Ungraduated

Histofluid is a water-clear adhesive of acrylic resins dissolved in xylene. It hardens fast and due to its optical properties suits perfectly well for embedding microscopic preparations. Shortly after having covered a preparation it can already be examined and filed. Histofluid may also be used to firmly lock and seal bottle caps.

• long storing or temperature changes do not cause fissures or deformations in Histofluid layers
• does not turn yellowish when being exposed to UV-radiation
• does not fluoresce
• does not form bubbles
• even sensitive colorations are preserved due to its acid number = 0
• refractive index of 1.5 (nD 20 °C) is adjusted to the microscope slide and cover glass
• water-repellent and dissolves in, for example, xylene, acetone, chloroform, dioxan and toluol
• can be stored in sealed bottles for an unlimited period
• filled into special bottles designed for hazardous materials and bearing the UN code

Due to its solvent contents Histofluid is flammable and, therefore, considered as hazardous. So it has to be specially packed and shipped according to the international transport regulations. Before ordering please carefully check your country's import regulations and ensure a smooth transport according to the IMO (International Maritime Organization). Any cost that might arise additionally for documents, reloading, returns etc. will be at your expense.

Due to the flat resting of the cover slips on the bars of the counting chambers, there is a defined volume of cell suspension over the counting net. For in vitro diagnostic applications according to IVD Directive 98/79 / EC, with lot number for traceability.
Thickness of the cover slips 0.4 mm.

• Made from special optical glass
• Edges ground and polished
• Well suited for blood smears
• Single packed in poly bags

For labeling all surfaces made of glass, plastic and paper. Permanent marker with very fine tip suitable for permanent labeling of microscope slides, embedding cassettes, Petri dishes or CDs. Line width approx. 1 mm.

• Water-resistant
• Resists most laboratory chemicals
• Writes immediately (no priming required)
• Solvent free, water based
• Odourless
• Non-toxic
• With holding clip

For uniform distribution of bacterial material on solid culture media.

• Made of soda lime glass of third hydrolytic class
• In compliance with DIN ISO 8037/1
• Frosted microscope slides (as indicated) with marking area of approx. 20 mm on both sides
• pre-cleaned and ready for use
• autoclavable

Suitable for immunohistochemistry and in situ hybridization.

• Made of soda lime glass of the 3rd hydrolytic class
• Pre-cleaned and ready for use
• Autoclavable
• In compliance with DIN ISO 8037/1 and for in vitro diagnostic applications according to IVD Directive 98/79 / EC
• With recommended best-before date and batch number

-With silky frosted marking area at one end on both sides on which notes can be made by pencils or labels

• 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 - 0,16 mm) and 1.5H (0.170 mm ± 0.005 mm) as indicated

With well wettable reaction wells and epoxy resin colour masks with high resistance against solvents. Available in black, blue, green, red and white colour.

• Made of soda lime glass of third hydrolytic class
• In compliance with DIN ISO 8037/1
• With 90° ground edges
• With frosted marking area of approx. 20 mm on one side
• Pre-cleaned and ready for use
• Autoclavable

Suitable as a weighing dish or for moisture analysis in a infrared dryer. Manufactured grease and oil-free. Good standing on the worktop thanks to particularly flat bottom.

With ground rim.

Glass dish with cover. For inserting a staining tray.

Please order staining tray separately.

Accessories  Accessories Staining tray for Staining jar, Soda-lime glass

For 10 slides (approx. 76 x 26 mm).

Accessories Wire handle for staining tray

For 60 slides (approx. 76 x 26 mm).

Counting chamber with special depths (Petroff), Tolerance ±1 µm. For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• With 2 haemacytometer cover glasses 20 x 26 x 0.4 mm
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• Individually packed

For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• Tolerance of depth of chamber max. 2 %
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• With 2 haemacytometer cover glasses 20 x 26 x 0.4 mm
• Individually packed

For analysis of fruit juices.

• With 2 counting lines with a line width of 1.5 to 2 µm at a distance of 1402 µm
• Ring diameter approx. 18 mm inside, 22 mm outside

Please order cover glasses separately.

For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• Tolerance of depth of chamber max. 2 %
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• With 2 haemacytometer cover glasses 20 x 26 x 0.4 mm
• Individually packed

Specifications: Method of analysis: Measuring:	Laser diffraction (Scattering) any solids dry or in suspension and emulsions
Measuring range:	0.08 to 2000µm
Analysis:	according to Fraunhofer or Mie theory with the FRITSCH MaS control software
Measuring time:	5 to 10sec.
Weight:	38.4kg (Measuring unit) 30.8kg (Wet dispersion unit) 25kg (Dry dispersion unit)
Dimensions (W x D x H):	530 x 620 x 350mm (Measuring unit) 320 x 620 x 440mm (Wet dispersion unit) 360 x 650 x 370mm (Dry dispersion unit)

For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• Tolerance of depth of chamber max. 2 %
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• With 2 haemacytometer cover glasses 20 x 26 x 0.4 mm
• Individually packed

For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• Tolerance of depth of chamber max. 2 %
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• Individually packed

For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• Tolerance of depth of chamber max. 2 %
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• With 2 haemacytometer cover glasses 20 x 26 x 0.4 mm
• Individually packed

For analysis of cell suspensions.

• With double ruling
• In compliance with DIN ISO 12 847
• Tolerance of depth of chamber max. 2 %
• Counting grids are engraved into two ground and polished surfaces in the chamber bottom, located between two elevated also ground and polished stages.
• With 2 haemacytometer cover glasses 20 x 26 x 0.4 mm

For veterinary medicine (e.g. helminth eggs counting).

• Suitable for solid media
• Cover glass with 2 counting areas approx. 10 x 10 mm (divided into 10 parts), glued on 3 supports
• Distance between bottom plate and cover glass approx. 1.5 mm
• Dimensions 75 x 32 mm

For counting of particles and microorganisms in water or other transparent liquids.

• The cell of 1 cm³ is ruled in a 1 mm grid subdividing 1 ml in 1000 µl
• Glass Counting chamber with chromium deposited for phase contrast use with ground and chamfered edges

Accessories Cover glasses for counting chambers according to Sedgewick Rafter