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
Bellco Glass, Inc. Manufactured from type 1 class a Borosilicate glass. Bottom indent and 3 vertical baffles for optimal mixing. Sidearm cap: 45mm Center cap: 70mm Dimensions: 1110" x 175" Flask size: 500ml
Manufactured from type 1 class a Borosilicate glass. Bottom indent and 3 vertical baffles for optimal mixing. Sidearm cap: 45mm Center cap: 70mm Dimensions: 1110" x 175" Flask size: 500ml
Bellco Glass, Inc. Manufactured from type 1 class a Borosilicate glass. Bottom indent and 3 vertical baffles for optimal mixing. Sidearm cap: 32mm Center cap: 70mm Flask size: 250ml
Manufactured from type 1 class a Borosilicate glass. Bottom indent and 3 vertical baffles for optimal mixing. Sidearm cap: 32mm Center cap: 70mm Flask size: 250ml
Ace Glass, Inc. Spherical flask, 50000mL, (3)in-line 65/40 spherical joints, (2)24/40 standard taper joints
50L spherical flask with (3) in-line 65/40 spherical joints, and (2) 24/40 standard taper joints. Flask is designed for use with ACE 50L Spherical Reaction Assembly.
Bellco Glass, Inc. Flask have wide-mouth design for easy pouring and printed scale of approximate volumes Material: polypropylene Includes: polypropylene screw cap Size: 100ml Volume: 100 x 20mm Thread: 40mm
Flask have wide-mouth design for easy pouring and printed scale of approximate volumes Material: polypropylene Includes: polypropylene screw cap Size: 100ml Volume: 100 x 20mm Thread: 40mm
Bellco Glass, Inc. Manufactured from type 1 class a Borosilicate glass. Narrow mouth with heavy duty rim to prevent chipping. Ideal for general laboratory use. graduated to approximate volumes. Size: 500ml Stopper size: 7 Dimensions: 100x173mm
Manufactured from type 1 class a Borosilicate glass. Narrow mouth with heavy duty rim to prevent chipping. Ideal for general laboratory use. graduated to approximate volumes. Size: 500ml Stopper size: 7 Dimensions: 100x173mm
Bellco Glass, Inc. Manufactured from type 1 class a Borosilicate glass. Ideal for use to prepare solutions, and to contain. Flat bottom bulb with a elongated neck with permanent graduation line and marking area. Volumetric flasks are calibrated for a particular temperature
Manufactured from type 1 class a Borosilicate glass. Ideal for use to prepare solutions, and to contain. Flat bottom bulb with a elongated neck with permanent graduation line and marking area. Volumetric flasks are calibrated for a particular temperature
Bellco Glass, Inc. Flask have wide-mouth design for easy pouring and printed scale of approximate volumes Material: polypropylene Includes: polypropylene screw cap Size: 250ml Volume: 250 x 50mm Thread: 52mm
Flask have wide-mouth design for easy pouring and printed scale of approximate volumes Material: polypropylene Includes: polypropylene screw cap Size: 250ml Volume: 250 x 50mm Thread: 52mm
Ace Glass, Inc. 9 STOPPER FLSK LGTH 9 Stopper Flsk Lgth
Size 9 solid flask length standard taper stopper
Quality Lab Accessories 900ML CLR RND VOL FLASK
900mL Volumetric Flask with Round Bottom, Class A, Calibrated to 20�C
Essendant Rediform Driver's Daily Log Book with Daily Record and Hours Summary, Two-Part Carbonless, 7.88 x 5.5, 31 Forms Total
Log a day s driving summary in separate section at right side of each form Vehicle report on back of original with odometer start and finish mileage today time in stops time out layover time daily vehicle inspection report Features a Daily Record and Hours Summary Form Type Details- Driver/Dispatch Dated/Undated- Undated Forms Per Page- 1 Form Size- 7 88x5 5
Ace Glass, Inc. 250mL flask 1/4" hose connection
250mL heavy wall filter flask with a tooled neck for uniform stopper fit. Side hose connection is a #11 Ace-Thred that accepts a PTFE tubing connector with a silicone o-ring and nylon bushing to make an easier, safer, more convenient vacuum hose connection. Includes flask, 1/4 tubing connector, and nylon bushing.
Ace Glass, Inc. Volumetric flask, class A, 25mL, amber, white lettering, with individual certificate, includes 10/19 polyethylene stopper, sp/2
25mL Class A amber volumetric flask, used to precisely measure specified amounts of liquid in conjunction with the preparation and storage of solutions. These Class A flasks are in accordance with DIN and ISO accuracy standards to contain, and feature white lettering with the individual number and production date lasered onto its base. Each flask is tested individually, and the uncertainty measurement and date of issue are recorded on the Certificate. Flask sequential numbers are 3 letters & 4 numbers (AAA-0001). Includes 10/19 polyethylene stopper. Sold in packs of 2.
Sigma Aldrich Fine Chemicals Biosciences PyrexR VISTATM volumetric1L
PYREXR PyrexR VISTATM volumetric1L
Bellco Glass, Inc. Manufactured from type 1 class a Borosilicate glass. Bottom indent and 3 vertical baffles for optimal mixing. Sidearm cap: 32mm Center cap: 70mm Dimensions: 140" x 85" Flask size: 250ml
Manufactured from type 1 class a Borosilicate glass. Bottom indent and 3 vertical baffles for optimal mixing. Sidearm cap: 32mm Center cap: 70mm Dimensions: 140" x 85" Flask size: 250ml
Bellco Glass, Inc. Borosil Amber Volumetric Flask With Glass/Plastic Stopper, ASTM E288 Class A, 20 mL
Borosil Amber Volumetric Flask With Glass/Plastic Stopper, ASTM E288 Class A, 20 mL