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
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Filtered Search Results
DWK Life Sciences Kimble™ KIMAX™ Heavy-Duty Clear Glass Class A Volumetric Flasks with Glass Stoppers
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Large numbers make it easy to identify volume from far away
Mouth Style | Wide |
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Graduated | Yes |
Material | Borosilicate Glass |
Closure Material | Glass |
DWK Life Sciences Kimble™ KIMAX™ Heavy-Duty Clear Glass Volumetric Class A Flasks with PTFE Stoppers
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Stoppers are color coded for easy identification
Mouth Style | Wide |
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Color | Clear |
Graduated | Yes |
Bottom Shape | Flat |
Material | Borosilicate Glass |
Closure Material | PTFE |
DWK Life Sciences KIMBLE™ RAY-SORB™ Amber Heavy Duty Wide Mouth Volumetric Flask, Glass Stopper
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Protects contents from harmful UV light
Mouth Style | Wide |
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Color | Red |
Bottom Shape | Flat |
Material | Borosilicate Glass |
Closure Material | Glass |
DWK Life Sciences Kimble™ KIMAX™ Wide-Mouth Volumetric Flask
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Calibrated To Contain
DWK Life Sciences Kimble™ KIMAX™ Heavy-Duty Clear Glass Volumetric Class A Flasks without Stoppers
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Stoppers are available separately
Mouth Style | Wide |
---|---|
Color | Clear |
Graduated | Yes |
Bottom Shape | Flat |
Material | Borosilicate Glass |
DWK Life Sciences Kimble™ KIMAX™ Brand Class A Volumetric Flasks
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Calibrated To Contain and To Deliver
DWK Life Sciences KIMBLE™ RAY-SORB™ Amber Heavy Duty Wide Mouth Volumetric Flask, No Stopper
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RAY-SORB processing protects flask contents from short-length lightwaves
Mouth Style | Wide |
---|---|
Color | Red |
Bottom Shape | Flat |
Material | Borosilicate Glass |
DWK Life Sciences KIMBLE™ RAY-SORB™ Amber Heavy Duty Wide Mouth Volumetric Flask, PTFE Stopper
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Stoppers are color coded for easy identification
Mouth Style | Wide |
---|---|
Color | Red |
Bottom Shape | Flat |
Material | Borosilicate Glass |
Closure Material | PTFE |
DWK Life Sciences Kimble™ KIMAX™ Flasks with standard taper Pennyhead Stoppers
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Calibrated To Contain
Material | Borosilicate Glass |
---|---|
Calibration | Calibrated To Contain |
Closure Material | Glass |
DWK Life Sciences Kimble™ KIMAX™ Serialized/Certified Cylindrical Microflasks
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Calibrated To Contain
DWK Life Sciences Kimble™ KIMAX™ Plastic Safety-Coated Class A Volumetric Flasks with Glass Stopper
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Heavy-duty, wide-mouth flasks
Mouth Style | Wide |
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DWK Life Sciences Kimble™ KIMAX™ Class A Flasks Unserialized with Snap Cap
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Calibrated To Contain
Graduated | Yes |
---|---|
Calibration | Calibrated To Contain |
Closure Material | Polyethylene |
DWK Life Sciences™ Kimble™ Kontes™ Class A Threaded Volumetric Flask
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Calibrated to contain solutions.
Height (Metric) | 9 cm |
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Closure Size | 13-425 |
Graduated | No |
Bottom Shape | Flat |
Class | A |
Material | Borosilicate Glass (3.3) |
Certifications/Compliance | ASTM E288 |
Closure Type | Screw |
Height (English) | 3.5 in. |
DWK Life Sciences Kimble™ KIMAX™ Flasks Serialized and Class A Certified with Snap Caps
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Calibrated and certified against NIST-Traceable equipment
Material | Borosilicate Glass |
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Closure Material | Polyethylene |
DWK Life Sciences Kimble™ KIMAX™ Brand Colorware Volumetric Class A Flasks
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Single graduation ring blasted on the neck and durable matte finish marking area for use with an ordinary pencil
Graduated | Yes |
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Material | Borosilicate Glass |
Closure Material | Glass |