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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Ashing/Burn off furnaces LV 3/11 - LVT 15/11
Nabertherm
The models LV 3/11 - LVT 15/11 are especially designed for ashing in the laboratory. A special air intake and exhaust system allows air exchange of more than 6 times per minute. Incoming air is preheated to ensure a good temperature uniformity.
Tmax 1100°C
Heating from two sides
Ceramic heating plates with integral heating element which is safeguarded against fumes and splashing, and easy to replace
Insulation only made of materials that are classified as not carcinogenic acc. to TRGS 905, class 1 or 2
Housing made of sheets of textured stainless steel
Dual shell housing for low external temperatures and stability
Optional flap door (LV) which can be used as work platform or lift door (LVT) with hot surface facing away from the operator
Solid state relays provide for low noise operation
Air exchange of more than 6 times per minute
Good temperature uniformity due to preheating of incoming air
220-240 V 1/N/PE 50/60 Hz connector as standard
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The models LV 3/11 - LVT 15/11 are especially designed for ashing in the laboratory. A special air intake and exhaust system allows air exchange of more than 6 times per minute. Incoming air is preheated to ensure a good temperature uniformity.
Tmax 1100°C
Heating from two sides
Ceramic heating plates with integral heating element which is safeguarded against fumes and splashing, and easy to replace
Insulation only made of materials that are classified as not carcinogenic acc. to TRGS 905, class 1 or 2
Housing made of sheets of textured stainless steel
Dual shell housing for low external temperatures and stability
Optional flap door (LV) which can be used as work platform or lift door (LVT) with hot surface facing away from the operator
Solid state relays provide for low noise operation
Air exchange of more than 6 times per minute
Good temperature uniformity due to preheating of incoming air
220-240 V 1/N/PE 50/60 Hz connector as standard
Option:
Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
Observation hole in the oven door
Process control and documentation via VCD software package for monitoring, documentation and control
Accessories
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Height incl. exhaust tube (diam. 80 mm) External dimensions vary for versions with additional equipment. Dimensions on request.
Chamber furnaces
Nabertherm
The chamber furnaces are suitable for Annealing, Hardening and Brazing. The furnaces can be extended with a variety of accessories, like annealing boxes for operation under protective gas, roller guides, or a cooling station with a quench tank. Even high-performance applications like the annealing of titanium can be implemented without the use of expensive and complicated annealing systems....
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The chamber furnaces are suitable for Annealing, Hardening and Brazing. The furnaces can be extended with a variety of accessories, like annealing boxes for operation under protective gas, roller guides, or a cooling station with a quench tank. Even high-performance applications like the annealing of titanium can be implemented without the use of expensive and complicated annealing systems.
Robust insulation with light refractory bricks
Deep furnace chamber with three-sides heating: from both side walls and bottom
Low energy consumption due to multi-layer insulation
Base frame included
N 7/H - N 17/HR designed as table-top model
Parallel guided downward swinging door (user protected from heat radiation)
NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
Equipped with the B 500 programmable controller (with touch panel, 5 programmes with 4 segments each), optionally available with the C 540 controller
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High-temperature chamber furnaces with SiC rod heating LHTC/LHTCT 03/14 - 08/16 series
Nabertherm
These powerful laboratory muffle furnaces are available for temperatures up to 1400 °C, 1500 °C, 1550 °C or 1600 °C. The durability of the SiC rods in periodic use, in combination with their high heating speed, make these furnaces the all-rounders in the laboratory. Heating times of 40 minutes to 1400 °C can be achieved, depending on the furnace...
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These powerful laboratory muffle furnaces are available for temperatures up to 1400 °C, 1500 °C, 1550 °C or 1600 °C. The durability of the SiC rods in periodic use, in combination with their high heating speed, make these furnaces the all-rounders in the laboratory. Heating times of 40 minutes to 1400 °C can be achieved, depending on the furnace model and the conditions of use.
Tmax 1400 °C, 1500 °C, 1550 °C or 1600 °C
Working Temperature 1500 °C (for models LHTC ../16), increased wear and tear of heating elements must be expected in case of working at higher temperatures
Insulation only made of materials that are classified as not carcinogenic acc. to TRGS 905, class 1 or 2
Housing made of sheets of textured stainless steel
Dual shell housing for low external temperatures and high stability
Furnace room lined with durable fiber material, not classified
Optional flap door (LHTC) which can be used as work platform or lift door (LHTCT) with hot surface facing away from the operator (HTCT 01/ only with lift door)
Switching system with solid-state-relays, power tuned to the SiC rods
Controller is the programmable C 550 with adjustable ramps and holding times
Easy replacement of heating rods
Adjustable air inlet opening, exhaust air opening in the roof
400 V 3/N/PE 50/60 Hz connector as standard
Option:
Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
Square saggar for charging of up to three layers
Lid for top saggar
Manual or automatic gas supply system
Process control and documentation via VCD software package for monitoring, documentation and control
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* 220-240 V 1/N/PE 50/60 Hz connector as standard. Height plus max. 240 mm for the open LHTCT models. External dimensions vary for versions with additional equipment. Dimensions on request.
Muffle furnaces series L, max. 1100 °C, with flap door
Nabertherm
For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation)....
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For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation).
Dual shell housing made of textured stainless steel sheets for low external temperatures and high stability
Adjustable air inlet integrated in door
Exhaust air outlet in rear wall of furnace
Solid state relays provide low-noise operation
Standard connector 230 V 1/N/PE 50/60 Hz
24 and 40 l with 400 V 3/N/PE 50/60 Hz
Optional:
Chimney, chimney with fan or catalytic converter
Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
Protective gas connection to purge with non-flammable protective or reaction gases (not available in combination with chimney, chimney with fan or catalytic converter)
Manual or automatic gas supply system
Process control and documentation via VCD software package for monitoring, documentation and control
-Ceramic heating plates with integrated heating wire, splash and exhaust protected, easy to replace
Heating from two sides (three sides for interior volumes of 24 and 40 l)
External dimensions vary for versions with additional equipment. Dimensions on request.
Muffle furnaces series L, max. 1200 °C, with flap door
Nabertherm
For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation)....
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For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation).
Dual shell housing made of textured stainless steel sheets for low external temperatures and high stability
Adjustable air inlet integrated in door
Exhaust air outlet in rear wall of furnace
Solid state relays provide low-noise operation
Standard connector 230 V 1/N/PE 50/60 Hz
24 and 40 l with 400 V 3/N/PE 50/60 Hz
Optional:
Chimney, chimney with fan or catalytic converter
Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
Protective gas connection to purge with non-flammable protective or reaction gases (not available in combination with chimney, chimney with fan or catalytic converter)
Manual or automatic gas supply system
Process control and documentation via VCD software package for monitoring, documentation and control
-Ceramic heating plates with integrated heating wire, splash and exhaust protected, easy to replace
Heating from two sides (three sides for interior volumes of 24 and 40 l)
External dimensions vary for versions with additional equipment. Dimensions on request.
Muffle Furnaces Series LE 1/11 - LE 24/11 up to 1100 °C
Nabertherm
Compact muffle furnaces with dual shell furnace housing of rust-free stainless steel and heating elements encased in quartz glass tubes.
Tmax 1100 °C, working temperature 1050 °C
Heating from two sides from heating elements in quartz glass tubes
Maintenance-friendly replacement of heating elements and insulation
Insulation only made of materials that are classified as not carcinogenic acc. to TRGS 905, class 1 or 2
Housing made of sheets of textured stainless steel
Dual shell housing for low external temperatures and high stability
Flap door which can also be used as a work platform
Exhaust air outlet in rear wall
Compact dimensions and light weight
Controller mounted under the door to save space
Equipped with the basic controller R 7 with one free storeable temperature, which is dwelled until the controller is switch off
Standard power supply 230 V, 1/N/PE, 50/60 Hz
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Compact muffle furnaces with dual shell furnace housing of rust-free stainless steel and heating elements encased in quartz glass tubes.
Tmax 1100 °C, working temperature 1050 °C
Heating from two sides from heating elements in quartz glass tubes
Maintenance-friendly replacement of heating elements and insulation
Insulation only made of materials that are classified as not carcinogenic acc. to TRGS 905, class 1 or 2
Housing made of sheets of textured stainless steel
Dual shell housing for low external temperatures and high stability
Flap door which can also be used as a work platform
Exhaust air outlet in rear wall
Compact dimensions and light weight
Controller mounted under the door to save space
Equipped with the basic controller R 7 with one free storeable temperature, which is dwelled until the controller is switch off
Standard power supply 230 V, 1/N/PE, 50/60 Hz
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External dimensions vary for versions with additional equipment. Dimensions on request.
Muffle furnaces series LT, max. 1100 °C, with lift door
Nabertherm
For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation)....
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For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation).
Dual shell housing made of textured stainless steel sheets for low external temperatures and high stability
Adjustable air inlet integrated in door
Exhaust air outlet in rear wall of furnace
Solid state relays provide low-noise operation
Standard connector 230 V 1/N/PE 50/60 Hz
24 and 40 l with 400 V 3/N/PE 50/60 Hz
Optional:
Chimney, chimney with fan or catalytic converter
Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
Protective gas connection to purge with non-flammable protective or reaction gases (not available in combination with chimney, chimney with fan or catalytic converter)
Manual or automatic gas supply system
Process control and documentation via VCD software package for monitoring, documentation and control
-Ceramic heating plates with integrated heating wire, splash and exhaust protected, easy to replace
Heating from two sides (three sides for interior volumes of 24, 40 and 60 l)
The hot side of the lift door is facing away from the operator
Alternative
Alternative
Alternative
Alternative
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External dimensions vary for versions with additional equipment. Dimensions on request.
Muffle furnaces series LT, max. 1200 °C, with lift door
Nabertherm
For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation)....
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For daily laboratory use. Models with flap door or lift door available, for temperatures from 1100 °C to 1400 °C. Equipped with programmable controllers B 510 (with touch panel, 5 programmes with 4 segments each), or C 550 (with touch panel, 10 programmes with 20 segments each), L 1/12 with controller R 7 (continuous operation).
Dual shell housing made of textured stainless steel sheets for low external temperatures and high stability
Adjustable air inlet integrated in door
Exhaust air outlet in rear wall of furnace
Solid state relays provide low-noise operation
Standard connector 230 V 1/N/PE 50/60 Hz
24 and 40 l with 400 V 3/N/PE 50/60 Hz
Optional:
Chimney, chimney with fan or catalytic converter
Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
Protective gas connection to purge with non-flammable protective or reaction gases (not available in combination with chimney, chimney with fan or catalytic converter)
Manual or automatic gas supply system
Process control and documentation via VCD software package for monitoring, documentation and control
-Ceramic heating plates with integrated heating wire, splash and exhaust protected, easy to replace
Heating from two sides (three sides for interior volumes of 24, 40 and 60 l)
Lift door with hot surface facing away from the operator
External dimensions vary for versions with additional equipment. Dimensions on request.
Accessoires for Muffle furnaces, M110-series
Thermo
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Rapid incinerator
Gestigkeit
For individual and series incineration of solids and liquids. Upper platform with 8 openings of 34mm diameter, for porcelain crucibles up to 50mm diameter. Upper platform and housing made of stainless steel. With 120 minute timer with audible signal after timed period and separate continuous operation switch. A safety switch switches the mains supply off / on automatically on opening / closing the incinerator chamber. With 1.5 metre cable and earthed plug....
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For individual and series incineration of solids and liquids. Upper platform with 8 openings of 34mm diameter, for porcelain crucibles up to 50mm diameter. Upper platform and housing made of stainless steel. With 120 minute timer with audible signal after timed period and separate continuous operation switch. A safety switch switches the mains supply off / on automatically on opening / closing the incinerator chamber. With 1.5 metre cable and earthed plug.
Type SVR/E With electronic temeprature control which allows stepless heating adjustment from 10 to 100%. Complete for use.
Type SVD 95 With digital temperature adjustment and display. Complete for use.
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