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No. 4 Vacuum Flask Stopper
The No. 4 Vacuum Flask Stopper is a precision-engineered tool designed to provide an airtight, leak-proof seal during deairing operations in laboratory settings. Built for compatibility with 1,000ml Volumetric Flasks and all Iodine Flasks, this stopper is an essential accessory for larger-scale and specialized testing procedures.
Each stopper is fitted with a single-hole design and a durable metal barbed fitting, enabling fast, secure connections to standard 3/8-inch vacuum tubing. This ensures consistent performance and efficiency throughout all deairing operations.
Stopper Compatibility:
No. 1 Stopper: Fits 250ml Volumetric Flasks, ideal for smaller-scale testing.
No. 2 Stopper: Fits 500ml Volumetric Flasks, suitable for medium-sized applications.
No. 4 Stopper: Fits 1,000ml Volumetric Flasks and all Iodine Flasks, perfect for larger-scale or specialized operations.
Key Features:
Airtight Seal: Provides a reliable, leak-proof seal to maintain consistent vacuum pressure during deairing procedures, ensuring accurate test results.
Metal Barbed Fitting: Equipped with a durable metal barbed fitting for quick and secure attachment to 3/8-inch vacuum tubing, minimizing the risk of disconnection during use.
Durable Construction: Made from high-quality, resilient materials capable of withstanding the demands of rigorous laboratory environments, including repeated use and exposure to various substances.
Versatile Compatibility: Designed to work seamlessly with a range of laboratory flasks, including Pycnometer Flasks, Volumetric Flasks, and Iodine Flasks, making it a versatile tool for multiple testing applications.
Easy to Use: The stopper's straightforward design allows for quick setup and removal, saving valuable time during laboratory procedures.
Applications:
Vacuum Flask Stoppers are widely used across a range of laboratory procedures, including:
Soil Density Testing: Ensuring accurate measurement of soil compaction and density by maintaining a consistent vacuum during deairing.
Specific Gravity Analysis: Supporting precise specific gravity calculations for soil solids and other materials.
Deairing Procedures: Removing air bubbles from liquid samples to ensure accurate and reliable test results.
Geotechnical Testing: Commonly used in geotechnical laboratories for a variety of soil and material testing applications.
Compliance with Industry Standards:
AASHTO T100: Standard method for determining the specific gravity of soils.
ASTM D854: Standard test for the specific gravity of soil solids by water pycnometer.
These compliance certifications ensure that the No. 4 Vacuum Flask Stopper meets the rigorous requirements of modern laboratory testing, giving you confidence in the accuracy and reliability of your results.
Why Choose the No. 4 Vacuum Flask Stopper?
Whether you're conducting routine soil density tests or complex specific gravity analyses, the No. 4 Vacuum Flask Stopper delivers the performance and reliability you need. Its durable construction, versatile compatibility, and compliance with key industry standards make it an indispensable tool for any laboratory focused on precision and efficiency. Invest in quality and ensure your testing procedures meet the highest standards with the No. 4 Vacuum Flask Stopper.