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
Brand™ Blaubrand™ Amber Borosilicate Glass Class A Volumetric Flask
Manufactured from Amber Borosilicate Glass and complies with DIN EN ISO 1042 standards. BRAND™ Blaubrand™ Amber Borosilicate Glass Class A Volumetric Flask includes a polypropylene stopper, but is interchangeable with amber glass stopper. The dark flask protects against deterioration of light-sensitive liquids. Also includes batch number and certificate. USP individual- and USP batch certificate are also available by request.
BRAND™ Class B Polypropylene Volumetric Flask
High clarity polypropylene construction. Exposure to temperatures up to 60°C will not cause permanently exceeded error limits.
BRAND™ PMP Class A Measuring Flask
PMP flask with polypropylene stopper
BRAND™ Class A Borosilicate Volumetric Flask with Polypropylene Stopper
Borosilicate volumetric flask with polypropylene stopper and ISO batch certificate.
BRAND™ Class A Borosilicate Volumetric Flask with Polypropylene Stopper
Borosilicate volumetric flask with polypropylene stopper and USP single batch certificate.
Kartell™ plastilab™ Volumetric Flask with Stopper
These plastilab™ flasks create no meniscus which simplifies the process of reading final volumes. Calibrated gravimetrically at 20°C, the translucency of polypropylene is enhanced when it comes in contact with liquid. Thin walls eliminate distortion, and a thin neck design makes final readings precise. This Volumetric Flask is autoclavable, chemically non-absorbent, safe for use with food, and includes stoppers.
Hirschmann™ Glass Trapezoidal Volumetric Flask with Polyethylene Stopper
Manufactured using class A, DURAN™ glass
Witeg™ Volumetric Flask
Store your chemicals and reagents in conformity certified volumetric flasks. Witeg™ Volumetric Flask is highly resistant and labelled with resistant graduation marks.
Hirschmann™ Class B Volumetric Flask with Stopper
Calibrated to contain a precise volume at a specific temperature. Flasks are used for precise dilutions and prepare standard solutions.
BRAND™ Blaubrand™ Amber Borosilicate Glass Class A Volumetric Flask, with Certificate
Manufactured from Amber Borosilicate Glass and complies with DIN EN ISO 1042 standards. Includes a polypropylene stopper, but is interchangeable with amber glass stopper. The dark flask protects against deterioration of light-sensitive liquids. Delivered with individual conformity certificate.
Corning™ Class A Reusable PFA Volumetric Flasks with Screw Cap
Autoclaved to 121°C
MBL™ Borosilicate Glass Class B Volumetric Flask
Manufactured from borosilicate glass for corrosion-free performance. MBL™ Borosilicate Glass Class B Volumetric Flask complies with ISO 1042 and DIN 12664. Inscriptions in blue enamel provide easy volume assessment. Includes polyethylene stopper.
DWK Life Sciences Kimble™ Kontes™ Wide Mouth Class A Volumetric Flasks
Specially designed wide mouth mixing bulb for easy access of content in the flask.
DWK Life Sciences Kimble™ KIMAX™ Heavy-Duty Clear Glass Volumetric Class A Flasks with PTFE Stoppers
Stoppers are color coded for easy identification
Corning™ Class A Reusable PMP Volumetric Flasks with Tapered PP Stopper
Autoclaved to 121°C