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Flask, Round Bottom, Wide Neck, ISO

High-performance round-bottom flask with a wide neck for smooth pouring and convenient access. Made with excellent 3.3 expansion borosilicate glass that meets USP Type I and ASTM E438 standards. The strong beaded rim ensures longevity and great resistance to thermal and chemical damage.

Key Features:

  • USP Type I & ASTM E438 Class A Glass: Made from high-grade 3.3 expansion borosilicate glass for maximum resistance to chemical attack and thermal shock.

  • Wide Neck Design: Allows effortless pouring of liquids and powders into and out of the flask, making filling and cleaning simpler.

  • Reinforced Beaded Rim: Provides enhanced structural strength around the opening to prevent chipping and ensure a secure fit with stoppers.

  • ISO Compliant: Standardized design ensuring seamless integration with standard laboratory setups and accessories.

  • Thermal & Chemical Resistance: Ideal for uniform heating, distillation, and refluxing with aggressive chemicals.

Categories: ,

Our Wide Neck Round Bottom Flasks are designed for demanding laboratory applications, combining high temperature stability with superior chemical endurance. Made with high-quality 3.3 expansion borosilicate glass that meets USP Type I and ASTM E438, Type I, Class. These flasks are required for consistent performance under extreme temperature changes and rigorous reagent exposure.

The broad neck design greatly simplifies the filling, transferring, and retrieval of liquids, powders, and sticky substances. Each flask is designed to meet ISO requirements, with a reinforced beaded rim for maximum mechanical strength and a safe, easy stopper attachment.

Technical Specifications:
Specification Details
Material 3.3 Expansion Borosilicate Glass
Compliance USP Type I, ASTM E438 Type I Class A, ISO Standards
Neck Type Wide Neck with Beaded Rim
Bottom Shape Round Bottom
Autoclavable Yes
Applications Heating, Distillation, Chemical Reactions, Liquid/Powder Transfer

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