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.
Filter
Filter
Funnels, short stem, borosilicate glass 3.3
LABSOLUTE®
LABSOLUTE® short-stem funnels are made of high-quality borosilicate glass 3.3. They can also be used to decant and filter hot liquids. LABSOLUTE® funnels with diameter from 35 - 150 mm fit to almost every application. All funnels are manufactured on the basis of ISO 4798....
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LABSOLUTE® short-stem funnels are made of high-quality borosilicate glass 3.3. They can also be used to decant and filter hot liquids. LABSOLUTE® funnels with diameter from 35 - 150 mm fit to almost every application. All funnels are manufactured on the basis of ISO 4798.
LABSOLUTE® powder funnels made of transparent PP are unbreakable and very economic. They can be autoclaved at 121 °C. The funnels are suitable to transfer powders, granulated materials and highly viscous liquids. The parallel stem prevents blockage in the funnel. There are also ribs on the inside for fast filtration and ribs on the outside to prevent air blockage....
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LABSOLUTE® powder funnels made of transparent PP are unbreakable and very economic. They can be autoclaved at 121 °C. The funnels are suitable to transfer powders, granulated materials and highly viscous liquids. The parallel stem prevents blockage in the funnel. There are also ribs on the inside for fast filtration and ribs on the outside to prevent air blockage.
LABSOLUTE® funnels made of transparent PP are autoclavable at 121 °C. Compared to glass funnels, the shatterproof PP funnels are a good and cheap alternative for almost every filtration of low-viscosity liquids. Standard filter paper fits into the funnels. Ribs on the inside ensure fast filtration. Ribs on the outside avoid air bubbles between the filter paper and the funnel's surface....
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LABSOLUTE® funnels made of transparent PP are autoclavable at 121 °C. Compared to glass funnels, the shatterproof PP funnels are a good and cheap alternative for almost every filtration of low-viscosity liquids. Standard filter paper fits into the funnels. Ribs on the inside ensure fast filtration. Ribs on the outside avoid air bubbles between the filter paper and the funnel's surface.
LABSOLUTE® funnel holders made of PP are suitable for funnels with a diameter from 25 up to 150 mm. Without adapter they can be used for powder funnels with stem diameters not exceeding 35 mm. A clamp adapter is provided for use with rods from 8 to 12 mm....
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LABSOLUTE® funnel holders made of PP are suitable for funnels with a diameter from 25 up to 150 mm. Without adapter they can be used for powder funnels with stem diameters not exceeding 35 mm. A clamp adapter is provided for use with rods from 8 to 12 mm.
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LLG-Funnel, borosilicate glass 3.3
LLG
With short stem. With a cone angle of 60° offers an optimum fit for all filter sizes. Ideal for easy filling of laboratory bottles and filtration of liquids. High temperature and chemical resistance....
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With short stem. With a cone angle of 60° offers an optimum fit for all filter sizes. Ideal for easy filling of laboratory bottles and filtration of liquids. High temperature and chemical resistance.
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* according to DIN ISO 4798
LLG-Funnels, PP
LLG
Made of transparent polypropylene. Ideal for easy filling of laboratory bottles and filtration of liquids.
Good temperature and chemical resistance
Autoclavable at 121 °C and 1.1 bar for 30 minutes
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Made of transparent polypropylene. Ideal for easy filling of laboratory bottles and filtration of liquids.
Good temperature and chemical resistance
Autoclavable at 121 °C and 1.1 bar for 30 minutes
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LLG-Fast filtration funnels with internal ribs, PP
LLG
Clear, virgin polypropylene, autoclavable at 121°C and 1.1 bar for 30 minutes.
The external ribs prevent airlock and back pressure. The internal helicoidal rib prevents filter papers from sticking and increases filtration speed....
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Clear, virgin polypropylene, autoclavable at 121°C and 1.1 bar for 30 minutes. The external ribs prevent airlock and back pressure. The internal helicoidal rib prevents filter papers from sticking and increases filtration speed.
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LLG-Funnel holder, stainless steel
LLG
These funnel holders are suitable to hold all types of funnels with a diameter up to 150mm. They can also accommodate separating funnels (up to 1000ml). With or without bosshead....
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These funnel holders are suitable to hold all types of funnels with a diameter up to 150mm. They can also accommodate separating funnels (up to 1000ml). With or without bosshead.
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LLG-Funnel holder, PP
LLG
Manufactured from best quality polypropylene. Suitable to hold all types of laboratory funnels with diameters up to 150mm. Two tapered wedges are provided to ensure firm grip on rods having diameters of 10-13mm....
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Manufactured from best quality polypropylene. Suitable to hold all types of laboratory funnels with diameters up to 150mm. Two tapered wedges are provided to ensure firm grip on rods having diameters of 10-13mm.
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Powder funnels, PP
Kartell
Transparent. For transfer of powdered and granular substances.
Rapid flow due to a steep 60° angle
Autoclavable
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Transparent. For transfer of powdered and granular substances.
Transparent. Rapid flow due to a steep 60° angle. Practical handle with loop for hanging. Food-safe product according to regulation (EU) No. 10/2011....
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Transparent. Rapid flow due to a steep 60° angle. Practical handle with loop for hanging. Food-safe product according to regulation (EU) No. 10/2011.
Transparent. Rapid flow due to a steep 60° angle. Practical handle for hanging. Suitable for filling large amounts of liquids. Food-safe products according to regulation (EU) No. 10/2011.
Sieve for 9251 640 and 9251 645 available (not approved as a food-safe article). Please order separately....
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Transparent. Rapid flow due to a steep 60° angle. Practical handle for hanging. Suitable for filling large amounts of liquids. Food-safe products according to regulation (EU) No. 10/2011.
Sieve for 9251 640 and 9251 645 available (not approved as a food-safe article). Please order separately.
Transparent. For multi-neck flasks, laterally flattened, suitable for standard joint necks of various sizes. Suitable for the filling of liquid or powdered reagents into a reaction flask, partyicularly multi-neck flasks, during a reaction. Food-safe product according to regulation (EU) No. 10/2011....
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Transparent. For multi-neck flasks, laterally flattened, suitable for standard joint necks of various sizes. Suitable for the filling of liquid or powdered reagents into a reaction flask, partyicularly multi-neck flasks, during a reaction. Food-safe product according to regulation (EU) No. 10/2011.
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Urbanti TPX rapid funnels
Bel-Art
Glass-clear. For high-speed filtration. The internal helicoid ribs to increase the filtration speed.
Polymethylpentene plastic
Vertical outer ribs prevent airlock
Autoclavable
Unaffected by corrosive liquids
Heat resistant to 177 ºC
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Glass-clear. For high-speed filtration. The internal helicoid ribs to increase the filtration speed.
Polymethylpentene plastic
Vertical outer ribs prevent airlock
Autoclavable
Unaffected by corrosive liquids
Heat resistant to 177 ºC
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Powder funnels with NS-cone, borosilicate glass 3.3
PP holder mounted on a stand with 12.7 x 595 mm aluminium rod and heavy cast base plate.
Choice of stands to hold 2 or 4 funnels with a top diameter of 50 to 120 mm. The holder height is adjustable....
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PP holder mounted on a stand with 12.7 x 595 mm aluminium rod and heavy cast base plate. Choice of stands to hold 2 or 4 funnels with a top diameter of 50 to 120 mm. The holder height is adjustable.
Single or double holder for funnels from 25mm (with adapter supplied) up to 170mm diameter. Without adapter they can be used for powder funnels with stem diameters not exceeding 35mm. Two clamp adapters are provided for use with rods from 8mm to 14mm....
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Single or double holder for funnels from 25mm (with adapter supplied) up to 170mm diameter. Without adapter they can be used for powder funnels with stem diameters not exceeding 35mm. Two clamp adapters are provided for use with rods from 8mm to 14mm.
White, unbreakable, chemically resistant.
For 2 or 4 funnels. Robust, heavy base provides good stability. Variable height adjustment up to 450 mm. Thanks to a magnet system, no clamping screws are necessary. The height of the funnel holder can be adjusted easily and flexibly with one hand.
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White, unbreakable, chemically resistant. For 2 or 4 funnels. Robust, heavy base provides good stability. Variable height adjustment up to 450 mm. Thanks to a magnet system, no clamping screws are necessary. The height of the funnel holder can be adjusted easily and flexibly with one hand.
With 2 or 4 aperture reduction inserts for small funnels. Suitable for funnels with diam. 40 to 180 mm.
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