Volumetric Flasks
Volumetric flasks, also called graduated flasks or measuring flasks, are items of laboratory glassware or plasticware calibrated and labelled to contain a specified volume of reagents, solvents, or other liquids.
Volumetric flasks are often used to create chemical solutions. Many are manufactured and calibrated in ISO/IEC-certified laboratories and meet different ASTM and ISO standards of quality and dependability.
Volumetric flasks are typically pear shaped, with a flat base and long neck. They typically feature a single graduation ring etched or marked on the neck to define the specified fill level. They may also be supplied with a glass or plastic stopper.
Volumetric flasks come in capacities from 1 mL to 4 L and may be manufactured from either glass (borosilicate or soda lime) or autoclavable and chemical-resistant plastics such as polymethylpentene, polypropylene, or PFA. Glass versions may be clear, colored, or coated for handling light-sensitive liquids. Plastic flasks offer the advantage of being break-resistant and may also offer lower extractable profiles.
A Kohlrausch volumetric flask is modified to help transfer large amounts of solids into the flask for dissolution; it is commonly used to measure the sugar content of sugar beets. A Le Chatelier flask is designed for specific gravity determinations.
What Is the Difference Between Class A and B Volumetric Flasks?
Class A flasks are manufactured to high standards of precision for critical analytical work (often with a unique serial number for traceability), whereas Class B flasks offer less accuracy and are therefore more suitable for less demanding applications such as qualitative or educational use. Volumetric flasks are important items in a range of laboratory environments in both research and industry.
What Are Typical Applications of Volumetric Flasks?
• Preparation of standard solutions
• Preparation of series dilutions
• Filling, measuring, and decanting precise volumes of liquid
• Calibrating other containers and devices
Bellco Glass, Inc. Flask have wide-mouth design for easy pouring and printed scale of approximate volumes. Material: polypropylene Includes: polypropylene screw cap Size: 50ml
Flask have wide-mouth design for easy pouring and printed scale of approximate volumes. Material: polypropylene Includes: polypropylene screw cap Size: 50ml
Essendant MATMAT-A-DOR24X32BK
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Chemglass Life Sciences 2000 +/- 0.50mL Capacity, #27 Stopper Size, Approx 380mm Height with Stopper
Volumetric Flask, 2000 +/- 0.50mL Capacity, #27 Stopper Size, Approx 380mm Height with Stopper. Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique Flat Bottom Interior permits the use of a standard stir bar. Large permanent white letters make the capacity clearly visible. Flasks are calibrated "To Contain" at Class A tolerances, per ASTM E288 specifications. Supplied complete with a CG-8740 Polyethylene stopper.PLEASE NOTE: VOLUMETRIC FLASK CAPACITIES OF 20mL, 500mL, 1,000mL, and 2,000mL ARE NOT INCLUDED IN THE ASTM E288 SPECIFICATIONS. HOWEVER, FLASKS ARE CALIBRATED TO CLASS A TOLERANCES.
Chemglass Life Sciences 500 +/- 0.20mL Capacity, #19 Stopper Size, Approx 285mm Height with Stopper
Volumetric Flask, 500 +/- 0.20mL Capacity, #19 Stopper Size, Approx 285mm Height with Stopper. Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique Flat Bottom Interior permits the use of a standard stir bar. Large permanent white letters make the capacity clearly visible. Flasks are calibrated "To Contain" at Class A tolerances, per ASTM E288 specifications. Supplied complete with a CG-8740 Polyethylene stopper.PLEASE NOTE: VOLUMETRIC FLASK CAPACITIES OF 20mL, 500mL, 1,000mL, and 2,000mL ARE NOT INCLUDED IN THE ASTM E288 SPECIFICATIONS. HOWEVER, FLASKS ARE CALIBRATED TO CLASS A TOLERANCES.
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Bellco Glass, Inc. For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" id silicone tubing (bellco m7965037) available complete with micro-carrier impeller assembly or as components. Jacket volume (ml): 1300ml Cap size: 100
For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" id silicone tubing (bellco m7965037) available complete with micro-carrier impeller assembly or as components. Jacket volume (ml): 1300ml Cap size: 100
Bellco Glass, Inc. For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" id silicone tubing (bellco m7965037) available complete with micro-carrier impeller assembly or as components. Jacket volume (ml): 1l Cap size: 100mm
For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" id silicone tubing (bellco m7965037) available complete with micro-carrier impeller assembly or as components. Jacket volume (ml): 1l Cap size: 100mm
Bellco Glass, Inc. For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" id silicone tubing (bellco m7965037) available complete with micro-carrier impeller assembly or as components. Jacket volume (ml): 1l Cap size: 100mm
For use circulating water bath or chiller and magnetic stir plate. Hose connection accepts 3/8" id silicone tubing (bellco m7965037) available complete with micro-carrier impeller assembly or as components. Jacket volume (ml): 1l Cap size: 100mm
Chemglass Life Sciences 20 +/- 0.08mL Capacity, #13 Stopper Size, Orange Stopper Handle Color, Approx 128mm Height with Stopper
Volumetric Flask, 20 +/- 0.08mL Capacity, #13 Stopper Size, Orange Stopper Handle Color, Approx 128mm Height with Stopper. Low actinic red stained glass provides protection to light sensitive solutions. Allowing less than 1% transmission below 400nm and 5% from 400-600nm. Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique Flat Bottom Interior permits the use of a standard stir bar. Large permanent white letters make the capacity clearly visible. Flasks are calibrated "To Contain" at Class A tolerances, per ASTM E288 specifications. Supplied complete with a CG-3020-A PTFE stopper.PLEASE NOTE: VOLUMETRIC FLASK CAPACITIES OF 20mL, 500mL, 1,000mL, and 2,000mL ARE NOT INCLUDED IN THE ASTM E288 SPECIFICATIONS. HOWEVER, FLASKS ARE CALIBRATED TO CLASS A TOLERANCES.
Ace Glass, Inc. Volumetric flask, class A, 2000mL, blue lettering, with individual certificate, includes 29/32 polyethylene stopper, sp/2
Volumetric flask, class A, 2000mL, blue lettering, with individual certificate, includes 29/32 polyethylene stopper, sp/2
Ace Glass, Inc. Flask, 10L, evaporation, 380mm height, x-large flange, ambered, part 27469
Flask, 10L, evaporation, 380mm height, x-large flange, ambered, part 27469