Volumetric Flask,With Glass Stopper,Class A
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Product Overview
Our Class A volumetric flasks are premium-grade laboratory glassware engineered for precise volume measurement in quantitative chemical analysis, sample preparation, and solution formulation. Crafted from high-quality 3.3 borosilicate glass and manufactured via advanced machine-blowing technology, these volumetric flasks feature reinforced bottle bodies and thick-walled tubing necks for enhanced durability and structural stability.This volumetric flask comes complete with a matching ground joint glass stopper to create an airtight sealed environment. Designed and calibrated in strict accordance with ASTM E288 industry standards, the flask delivers Class A ultra-precise tolerance for "To Contain" volumetric testing. The innovative wide-mouth & flat-bottom structure simplifies daily lab operations, serving as indispensable glassware for professional laboratories, pharmaceutical factories, research institutions and university teaching labs.
Core Features
- Premium 3.3 Borosilicate Glass: Adopts high-performance borosilicate 3.3 material, featuring excellent thermal shock resistance, low expansion coefficient and superior chemical inertness to resist corrosive reagents.
- Reinforced Mechanical Structure: Machine-blown integrated bottle body with thickened tubing neck greatly improves overall structural strength, effectively preventing cracking during long-term repeated use.
- Class A High Precision Calibration: Calibrated to stringent Class A tolerance per ASTM E288 specifications; marked for To Contain (TC) to ensure accurate and repeatable volumetric results for critical experiments.
- Clear Permanent Graduations: The neck is equipped with sharp, color-printed permanent graduation lines and bold block inscriptions. Fade-resistant markings enable effortless reading under various lighting conditions.
- User-Friendly Wide Mouth: Optimized wide-bore neck design streamlines filling, sample extraction, reagent mixing and pipette access, compatible with diverse lab operating tools.
- Flat Interior Bottom: Unique flat inner bottom structure supports standard magnetic stir bars, allowing simultaneous stirring and solution preparation without extra containers.
- Airtight Glass Stopper: Equipped with a closed-bottom ground glass stopper that perfectly fits the ground neck to prevent solution evaporation, contamination and chemical deterioration.
- Reserved Marking Spot: Comes with a dedicated marking area for labeling sample information, facilitating classified storage and management of multiple solutions.
Wide Applications
Class A volumetric flasks are specialized for high-precision liquid volume measurement and standard solution preparation. They are widely used in analytical chemistry, biochemistry, pharmaceutical production, environmental testing, food & beverage inspection, cosmetic research and educational experiments. Ideal for configuring standard solutions, diluting concentrated reagents, storing trace samples and completing other high-precision laboratory tasks.Item Capacity Item Capacity CS-CF220005 5ml CS-CF220005 5ml CS-CF220010 10ml CS-CF220010 10ml CS-CF220020 20ml CS-CF220020 20ml CS-CF220025 25ml CS-CF220025 25ml CS-CF220050 50ml CS-CF220050 50ml CS-CF220100 100ml CS-CF220100 100ml CS-CF220200 200ml CS-CF220200 200ml CS-CF220250 250ml CS-CF220250 250ml CS-CF220500 500ml CS-CF220500 500ml CS-CF221000 1000ml CS-CF221000 1000ml CS-CF222000 2000ml CS-CF222000 2000ml
Volumetric Flask,With Glass Stopper,Class A
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