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
Foxx Life Sciences Borosil® Volumetric Flask Class A with Interchangeable PP Stopper (14/23), Individual Certificate, 100 mL, 10/CS
Borosil® Class A Volumetric Flasks are individually calibrated by automatic, laser-controlled calibration equipment. Supplied with standard PP stoppers. Flasks comply with ASTM E-288-Class-A. 20mL option is not covered in ASTM. 5mL, 10mL, and 20mL options have a trapezoidal shape for improved stability. Available from 5mL to 2000mL. In collaboration with Borosil Glass Works, Foxx Life Sciences is proud to bring the outstanding quality of Borosil® Type 3.3 Borosilicate glassware to North America for the first time. Manufactured from the same USP Type 1 borosilicate glass that North American scientists have come to trust, Borosil® Laboratory Glassware offers unparalleled mechanical strength, clarity, and reliability at competitive prices. And thanks to a unique annealing process, Borosil® Glassware is stress-free and incredibly resistant to thermal shock.
Bellco Glass, Inc. Borosil Volumetric Flask With Glass/Plastic Stopper, ASTM E288 Class A, 500 mL
Borosil Volumetric Flask with Interchangeable Solid Glass/ Plastic Stopper, Accuracy as per Class A, ASTM E288 with Batch Certificate, 500 mL, CS/10Borosil Volumetric Flasks with Interchangeable PP Stoppers are manufactured from 3.3 Borosilicate I.D. control tubing. Each flask is individually calibrated with an automatic, computer controlled, calibration machine, providing a more accurate volume. Borosils Volumetric Flasks are designed to give the best combination of thermal shock resistance, physical strength and resistance to chemical attack. All Volumetric Flasks have permanent amber printing. Comes with Batch Certificate. - 5mL to 20mL supplied with trapezoidal shape for better stability *Certified and Calibrated at 20 CSPECIFICATIONSMaterial: 3.3 BorosilicateColor: ClearCapacity: 500mLTolerance: 0.20mLNeck Type: Solid Glass/ Plastic StopperNeck Specification: GroundedStopper Size: 19/26Class/ Quality Grade: Type I, Class AQuantity Per Case: 10
Foxx Life Sciences Borosil Wide Mouth Class A Volumetric Flasks with Glass Pennyhead Stoppers, Batch Certificate, 250mL, 10/CS
Borosil Wide Mouth Class A Volumetric Flasks are individually calibrated by automatic, laser-controlled calibration equipment. Supplied with standard taper glass stoppers. Flasks comply with ASTM E-288, Class A. 20mL option is not covered in ASTM. 5mL, 10mL, and 20mL options have a trapezoidal shape for improved stability. Avail. from 5mL to 250mL. Larger Class A Flasks Avail. in Product Family 5645. In collaboration with Borosil Glass Works, Foxx Life Sciences is proud to bring the outstanding quality of Borosil Type 3.3 Borosilicate glassware to North America for the first time. Manufactured from the same USP Type 1 borosilicate glass that North American scientists have come to trust, Borosil Laboratory Glassware offers unparalleled mechanical strength, clarity, and reliability at competitive prices. And thanks to a unique annealing process, Borosil Glassware is stress-free and incredibly resistant to thermal shock.
Chemglass Life Sciences 5 +/- 0.08mL Capacity, #13 Stopper Size, Approx 90mm Height with Stopper
Volumetric Flask, 5 +/- 0.08mL Capacity, #13 Stopper Size, Approx 90mm 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-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 200 +/- 0.12mL Capacity, #19 Stopper Size, Green Stopper Handle Color, Approx 175mm Height with Stopper
Volumetric Flask, 200 +/- 0.12mL Capacity, #19 Stopper Size, Blue Stopper Handle Color, Approx 175mm 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-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.
Med Vet International Reusable Underpad Beck's Classic 34 X 36 Inch Polyester / Rayon Heavy Absorbency, 7136P-PB, 12/Dozen
Each pad has three layers that work together to protect against leakage Colorful printed plaid on 80% cotton / 20% polyester Ibex Quilted to a blended poly/rayon heavyweight soaker Knitted vinyl barrier, available in green only Bold colors to help hide stains
Bellco Glass, Inc. Polypropylene Volumetric Flask W/Polypropylene Stopper,100mL Class B
Individually calibrated to deliver at 20C. Durable ring marks resilient wear. Supplied with standard ground polypropylene stopper. Certified Class B tolerance per DIN ISO 1042. Translucent with individual ring mark. Volume: 100ml Accuracy +/- ml: 0.16 Height: 180mm Stopper size: 14/23
Fisherbrand™ PFA Flasks with Screw Caps
Calibrated 'To Contain' within Class A tolerances.
Eisco™ Class A Glass Volumetric Flask with Stopper PROMO
Class A Glass Volumetric Flask with Stopper features a flat bottom design, single graduation, and blue print markings.
Fisherbrand™ White Line Flasks
Single graduation ring blasted on the neck.
Eisco™ Amber Color Volumetric Flask with Stopper, Sure Trace Certification
Volumetric Flask, Class A Tolerance,Polypropylene Stopper, Blue Graduation. Made of Borosilicate Glass.
Eisco™ 5 mL Glass Volumetric Flask with Blue Graduations and Stopper
Volumetric Flask, 5 mL, Class A, ASTM. With a polypropylene stopper and a blue graduation. Made of Borosilicate Glass
Eisco™ Glass Volumetric Flask with White Graduations and Stopper
Volumetric Flask, Class A, ASTM. Blue Snap Cap, Single, White Graduation. Made of Borosilicate Glass.
Eisco™ Volumetric Flask with Polypropylene Stopper
Volumetric Flask with Polypropylene Stopper. White Graduation. Made of Borosilicate Glass