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.
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
Thermo Scientific™ Nalgene™ Class B Polymethypentene (PMP) Volumetric Flasks with Screw Caps
Protect against leakage, breakage, and contamination with these volumetric flasks, calibrated to contain and deliver at 20 degrees selsius
BLAUBRAND™ Glass Volumetric Flasks, Class A, USP, Certified
Indispensable for preparing dilutions and standard solutions
BLAUBRAND™ Class A Volumetric Flask with Flanged Rim
Manufactured from Borosilicate Glass and complies with DIN EN ISO 1042 standards.BRAND™ Blaubrand™ Class A Volumetric Flask with Flanged Rim prevents slippage when suspended by a clamp. Batch number and individual certificate included. DakkS calibration certificate available upon request.
Pyrex™ Amber Borosilicate Glass Class A Volumetric Flask
Manufactured from Pyrex™ Borosilicate Glass with an amber coating on exterior surfaces to facilitate use with light sensitive solutions. Pyrex™ Borosilicate Glass Class A Volumetric Flask complies with ISO 1042 and DIN 12664 and confirmity 'H' certified. Calibrated to the tolerance required by the United States Pharmacopoeia (USP.) Each flask is laser etched with an individual serial number batch code and date of manufacture.
BRAND™ Class B 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.
MBL™ Borosilicate Glass Class A Col Lisse
Calibrated to Class A tolerances. MBL™ Borosilicate Glass Class A Col Lisse is iIndividually laser etched with serial number, batch code and date of manufacture
Pyrex™ Amber Borosilicate Glass Class A Certified Volumetric Flask
Manufactured from borosilicate glass with amber coating on exterior surfaces to facilitate use with light sensitive solutions
DWK Life Sciences DURAN™ Volumetric Flask, Class A, amber, batch certificate
DURAN™ volumetric flasks are used for the accurate measurement of specific quantities of liquids. They are volumetric analysis aids in quantitative laboratory work. These volumetric flasks are certified by batch.
BLAUBRAND™ Borosilicate Glass Class A Volumetric Flask with Polypropylene Stopper
Manufactured from Borosilicate 3.3 glass. Calibrated to contain (TC, In.) Delivered with batch number and batch certificate.
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.