Flask, Volumetric, A-Class, Clear, with PE SL.Fla1307

Class A Accuracy: Each flask is individually calibrated in accordance with the To Contain (In) volumetric method at the standard reference temperature of 20°C. This model offers an exceptionally low tolerance of only ±0.15 mL, ensuring excellent consistency and reliability in analytical results.

High Thermal-Resistant Borosilicate Glass: The flask body is molded from premium borosilicate glass with uniform wall thickness and a low thermal expansion coefficient, providing superior thermal shock resistance and excellent resistance to most chemicals, strong acids, and alkalis.

Precise Calibration Mark: The long narrow neck is integrated with a sharply engraved white circular calibration line, enabling technicians to accurately align the liquid meniscus and minimize reading errors caused by viewing angle.

Convenient Octagonal PE Stopper: Supplied with an octagonal Polyethylene (PE) stopper fully compatible with the 14/23 ground neck joint. The stopper ensures a tight and secure seal, preventing solution leakage and minimizing solvent evaporation during inversion and sample mixing procedures.

Batch Certificate: A unique production Batch Number is permanently printed in durable white enamel directly on the flask body, meeting ISO/GLP laboratory requirements for quality management and full equipment traceability.