Graduated flasks

Volumetric flasks provide precise results in chemistry and pharmacy. They are not scaled, but have a single ring mark that is drawn all the way round the neck to avoid reading errors.

The narrow neck results in high setting accuracy. In addition, volumetric flasks have bulbous curves in the upper area so that any gas bubbles that form can escape from the solution more easily. However, if there are gas bubbles in the solution, the volumetric flask must be swivelled slightly so that the bubbles rise to the top. In addition to volumetric pipettes and burettes, volumetric flasks are therefore the most accurate volumetric instruments in the laboratory for analysis.

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 Glass markers, diamond-tipped

Kraus & Winter

Writing diamond for writing on glass. Available as a pen with retractable tip or mounted on a wooden handle....

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 Glass cutting knife

Usbeck

With interchangeable blades made of metal. Length: 185 mm. With plastic handle....

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 Glass tubing cutter

Usbeck

For glass tubing up to 30mm Ø. With interchangeable hard metal wheel....

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 Glascribe® Pen

Bel-Art

Mark laboratory glassware with the Glascribe ® Pen with retractable tungsten carbide tip (Mohs Hardness = 9). It easily inscribes on glass, ceramics, and plastic. The pen has a pocket clip so it is always handy when needed....

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 Melting point tubes

Hirschmann

Capillary tubes for melting point analysis. Clear glass, different diameters and lengths. Special remarks are available. Other sizes on request....

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 Nibs, for electro-diamond pen.

Medite

For electro-diamond pen. Supplied singly....

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 Raschig rings, glass

Hecht

Pack of 1 kg....

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 Glass ceramic laboratory protection plate

Usbeck

Thickness 3,8 mm, chamfered edges. Usable above open burner flame. Ideal as heating surface in place of a wire gauze or pipeclay triangle....

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 Pycnometers, calibrated with thermometer

Isolab

The pycnometers are supplied with a thermometer of scale range 10°C to 40°C, with scale 0.5°C.

  • ISO 3507 standard
  • Calibrated to contain IN (0.001 ml)
  • Net volume is engraved on the pycnometer
  • Body and stopper carries the same identification code number
  • Stopper with excellently polished upper and lower ends
  • Inscriptions are printed with blue enamel
...

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 Glass beads type S

Lindner

Type AR soda lime glass. Supplied in packs of approx. 1kg....

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 Glass Plates Gelco®

biostep

Suitable for BIO-RAD™ Mini-PROTEAN™ III and Tetra Cell.
Pack of 5 plates....

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 Accessories NANOCOLOR®

MACHEREY-NAGEL

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 Stirring rods, AR-GLAS®

BRAND

Glass tube, fused and sealed at both ends....

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Clear water cartridge Omnia 067

Stakpure
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PO number Package size Price per package    
6272159

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Glass rods borosilicate glass 3.3, 4 mm length 1500 mm, pack of 1 kg

Hecht

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9114104

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Glass rods borosilicate glass 3.3, 5 mm length 1500 mm, pack of 1 kg, ca.1,5 m

Hecht

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9114105

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Glass rods borosilicate glass 3.3, 6 mm length 1500 mm, pack of 1 kg

Hecht

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9114106

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GLASS RODS,DURAN(R),LENGTH 1500 MM,DIAM. 9 MM PACK OF 1 KG

Th. Geyer

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PO number Package size Price per package    
9114109

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Minimum order quantity 13 packs or a multiple!
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Glass tube DURAN 255 mm, Ø 10 mm, WS 5 mm, polyurethane coated, cut ends ***Custom made***

DWK

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6327409

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Minimum order quantity 10 packs or a multiple!
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Cobalt glass, 100 x 100 mm dark blue

WinLab

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6313722

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***no longer available***

Lenz

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6072287

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Absorption failure NS 29/32 for cyanide and king water 50ml D.40mm

Neubert

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7662202

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AMPULE BREAKER/COLLAR, FOR 1-TO 4-ML AMP ULES

Sigma-Aldrich

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Z122904-100EA

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AMPULE BREAKER/COLLAR, FOR 11-TO 20- ML A MPULES

Sigma-Aldrich

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Z168130-1000EA

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AMPULE BREAKER/COLLAR, FOR 5-TO 10-ML AM PULES

Sigma-Aldrich

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Z122890-100EA

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Measuring flasks for your specialisation

Measuring flasks are an important instrument in numerous scientific and industrial applications. Their versatility makes them indispensable for the precise preparation of solutions and for volumetric analyses. They are crucial for preparing reagents for experiments and reliably checking formulations and concentrations in the pharmaceutical industry. They are also useful aids in educational institutions such as schools, especially in subjects such as physics and chemistry. helpers.

Highest quality volumetric flasks from Th. Geyer

Th. Geyer offers you a comprehensive range of volumetric flasks that are specially tailored to your individual needs. Benefit from our high standards of quality, safety and functionality. For over 130 years, we have been a reliable partner to numerous satisfied companies, organisations and public institutions. institutions.

Whether for analytics, research or science - we are a full-range supplier. Our volumetric flasks and other products for your laboratory requirements fulfil all legal requirements. We are certified according to ISO 9001:2015 and comply with all directives of the EU regulation REACH.

High-quality volumetric flasks for every requirement

Measuring flasks are essential for precise volume measurements in the production of chemical solutions and when carrying out analytical processes. At Th. Geyer you will find a large selection of high-quality volumetric flasks in various sizes, materials and designs, with which you can ensure maximum accuracy when measuring a specific volume in chemistry and other natural sciences. With their pear-shaped or conical design and sophisticated features, our models are ideal for a wide range of applications. areas of application.

Our range boasts many different models made of high-quality borosilicate glass or plastic. They are calibrated to "In" and "Ex", graduated in blue or white and comply with DIN EN ISO 1042:

  • LABSOLUTE® Class A volumetric flasks with PE stopper or with hollow glass stopper
  • LABSOLUTE® Class A volumetric flasks in trapezoidal shape graduated in blue or white
  • DURAN® Class A volumetric flasks with PE stopper or with amber glass stopper
  • Nalgene™ volumetric flasks
  • Class B volumetric flasks made of PP with screw cap
  • BLAURAND® graduated cylinder with high mould and individual USP certificate
  • Variants for determining the oil content
  • Variants for sugar analysis
  • Dosing attachments for automatic tilting machines of the DURAN® tube
  • and much more

Excellent volumetric flasks and top advice

At Th. Geyer, you can order safely and easily from a single experienced source. You will receive both small and large quantities of volumetric flasks of the highest quality at an attractive price-performance ratio. Still haven't found what you're looking for? Browse through related product categories, such as graduated cylinders and mixing cylinders.

We look forward to your personal enquiry and will be happy to advise you personally and individually. Simply contact us without obligation. We are here for you here for you

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