Description

Volumetric Flask 25ml, PYREX Class B

The 25ml volumetric flask from PYREX, Class B, is a valuable tool in educational, scientific, and general laboratory settings. Made from high-quality borosilicate glass, it offers excellent chemical resistance and durability. The flask is calibrated to Class B standards, providing adequate accuracy for most educational and routine laboratory applications. It is primarily used for preparing and storing small-volume standard solutions, performing dilutions, and conducting volumetric analyses. In educational settings, it helps teach basic laboratory techniques and measurement principles. In scientific and industrial laboratories, it is useful for routine solution preparation, chemical reactions, and general quality control. The snug-fitting stopper ensures an adequate seal, making it suitable for safe storage and transport of solutions. Overall, this volumetric flask is a versatile and reliable piece of equipment essential for achieving consistent results in various applications.

Detailed Specifications

Material:
Borosilicate Glass: PYREX borosilicate glass is known for its excellent chemical resistance, thermal stability, and mechanical strength, making it ideal for laboratory use.

Dimensions and Capacity:
Capacity: 25 ml
Tolerance: Class B tolerance, generally ±0.06 ml for a 25 ml flask, providing adequate accuracy for many applications.
Height and Diameter: The flask is around 10-12 cm tall with a narrow neck to facilitate accurate filling to the calibration mark.

Calibration:
Class B Certification: Indicates a lower level of precision compared to Class A, but still provides reasonable accuracy for many practical uses.
Markings: Clear, etched calibration line indicating the 25 ml fill line, typically marked with permanent, chemical-resistant ink.

 Stopper:
Fit and Seal: Usually comes with a plastic or glass stopper that fits snugly into the neck of the flask to provide an adequate seal.
Material: The stopper is typically chemically resistant