Volumetric Flasks
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™ Trapezoidal Volumetric Flask with Polypropylene Stopper
Manufactured from Borosilicate Glass and complies with DIN EN ISO 1042 standards. BRAND™ Blaubrand™ Trapezoidal Volumetric Flask with Polypropylene Stopper prevents tipping and provides stability with flat surface.
Kimble Chase™ Borosilicate Glass Class A Square Volumetric Flask
Designed to take up less area and pack more closely on shelves and in refrigerators or other storage cabinets
BRAND™ BLAUBRAND™ Amber Borosilicate Glass Class A Volumetric Flask with Glass Stopper
Manufactured from Amber Borosilicate Glass and compllies with DIN EN ISO 1042 standards. BRAND™ Blaubrand™ Amber Borosilicate Glass Class A Volumetric Flask with Glass Stopper protects light-sensitive liquids from deterioration.Batch number and certificate enclosed with packing. DakkS calibration certificate available upon request.
BRAND™ Class A Borosilicate Volumetric Flask with Polypropylene Stopper
Borosilicate volumetric flask with polypropylene stopper and USP single batch certificate.
BRAND™ Blaubrand™ PURprotect™ Coated Borosilicate Glass Class A Volumetric Flask
Manufactured from Borosilicate Glass and complies with DIN EN ISO 1042 standards. BRAND™ Blaubrand™ PURprotect™ Coated Borosilicate Glass Class A Volumetric Flask will help to contain glass fragments in the event of breakage with its protective skin. Compared to uncoated glass flasks, the electrostatic charge is not increased. The light blue coating facilitates optical distinction.
BRAND™ Class A Amber Borosilicate Volumetric Flask with Polypropylene Stopper
Amber 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 ISO single batch certificate.
Duran™ Volumetric Flask, 3000 mL, without print
An ideal choice for the mixing, measuring and holding of liquids in the laboratory.
BRAND™ Class A PMP Volumetric Flask
Autoclaving up to 121°C will not cause permanently exceeded error limits. Cleaning up to max. 60°C is recommended to preserve marks and inscriptions.
Hirschmann™ Class A Volumetric Flasks with Poly Stopper, Blue Graduation
Allows for precise, safe liquid measurement and handling in the laboratory. Hirschmann Instruments™ Class A Volumetric Flasks with Poly Stopper, Blue Graduation are manufactured from durable DURAN™ glass tubing.
Thermo Scientific™ Nalgene™ Class B Polypropylene Copolymer Volumetric Flasks with Closure
Lighter in weight than glass, these flasks are break-resistant, offer excellent chemical resistance and protect against leakage and contamination.
BRAND™ Blaubrand™ Borosilicate Glass Class A USP Volumetric Flask with Glass Stopper
Manufactured from Class A Borosilicate Glass and complies with DIN EN ISO 1042 standards.Blaubrand™ Borosilicate Glass Class A USP Volumetric Flask with Glass Stopper includes USP batch certificate. USP individual certificate available upon request. DE-M Marking provides easy volume check.
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™ 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.
Karl Hecht™ Volumetric Flask with Rim
Simply and accurately measure required sample volumes. Karl Hecht™ Volumetric Flask with Rim is thick-walled, clearly marked and labeled, and has a solid finish.