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
Alkali Scientific CellPro Polypropylene PP Centr
Efficiently process large-volume cell harvesting pelleting and protein purification with CellProPolypropylene (PP) Centrifuge Bottlesa reliable solution engineered for demanding laboratory applications These bottles are crafted from high-quality opaque PP offering exceptional chemical resistance durability and compatibility with a wide range of laboratory reagents Their autoclavable nature ensures they can withstand rigorous sterilization processes making them ideal for high-performance workflows The opaque design of the bottles provides superior chemical resistance making them well-suited for applications involving aggressive solvents acids or bases While they do not allow for direct visual monitoring of samples like polycarbonate or PPCO their enhanced durability and resistance to autoclaving cycles make them a preferred choice for long-term use and high-stress applications To ensure optimal performance these centrifuge bottles must be filled to at least 80% of their total capac
CHEMSCIENCE Volumetric Flask, 30mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper- 13, Class A
Volumetric Flask, 30mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper- 13, Class A
CHEMSCIENCE Volumetric Flask, 400mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper- 19, Class A
Volumetric Flask, 400mL, Serialized and Certified, Heavy Duty, Wide Mouth, PE Stopper- 19, Class A
Bellco Glass, Inc. Volumetric Flask,200mL To Contain
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 usually 20 degree Celsius.Specifications:Type 1 Class A Borosilicate GlassSize: 10mlStopper Size: 16Dimensions: 74x220mmCase Quantity: 4
