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
Vee Gee Volumetric Flask, Class A, Glass Stopper, 200 mL
The SIBATA Class A Volumetric Flask with ground glass stopper features machine-blown body and heavy-beaded, heavy-tubing neck that is tooled for standard taper glass stopper.• Designed """"To Contain"""" with a temperature of calibration at 20°C• Constructed of borosilicate glass with a low coefficient of expansion• Graduation line is sharply defined and of uniform width• Flask has a large marking square and includes a glass stopper• Meets ASTM E-288 Class A Specifications & USP Standards for Volumetric Flasks
CHEMSCIENCE Volumetric Flask, 200mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper# 19, Class A,PK/6
Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique flat bottom interior permits the use of a standard stir bar. The graduation line on the neck is sharp with permanent large colored encryption for easy-read. Flasks are calibrated 'To Contain' at Class A tolerances, per ASTM E288 specifications. Supplied with closed bottom Polyethylene stopper to fit in the ground neck.
Essendant TRAY1LVLCOIN/BL STRPBG
An efficient way to organize currency wrappers or straps This single level design offers six compartments where you can store different denominations of bill straps or coin wrappers The top flat tray area is ideal for storage or placing strapped notes wrapped coins pens paper clips or other counting supplies Keep your bill straps or coin wraps better organized and accessible with this coin wrap or bill strap organizer rack for a decluttered space and mind Cash Drawer/Box/Tray Type- Rack Money Tray Features- 6 Compartments Material(s)- Steel Width- 10
CHEMSCIENCE Volumetric Flask, 75mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper- 16, Class A
Volumetric Flask, 75mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper- 16, Class A
Cole-Parmer ELEMENTS VOLUMETRIC FLASK
elements Volumetric Flask, Glass, with Glass Stopper, 2 mL; 10/PK
Fisherbrand™ PFA Flasks with Screw Caps
Calibrated 'To Contain' within Class A tolerances.
Fisherbrand™ White Line Flasks
Single graduation ring blasted on the neck.
Eisco™ 5 mL Glass Volumetric Flask with Blue Graduations and Stopper
Volumetric Flask, 5 mL, Class A, ASTM. Tolerance ± 0.020 mL. With a glass stopper and a single, blue graduation
Eisco™ QR Code Glass Volumetric Flask with PE Stopper
Volumetric Flask, Class A. Made of Borosilicate Glass with a Polyethylene Stopper. QR Code Marking for Calibration Certificate.
Eisco™ Volumetric Flask with Stopper
Volumetric Flask, Class A with Polypropylene Stopper and a blue graduation. Made of Borosilicate Glass.
Eisco™ 20 mL Glass Volumetric Flask with PE Stopper
Volumetric Flask, 20 mL,Class A with 10/19 Polyethylene Stopper. Made of Borosilicate Glass.
Eisco™ Volumetric Flask with Polypropylene Stopper
Volumetric Flask with Polypropylene Stopper. White Graduation. Made of Borosilicate Glass