DURAN® Volumetric Flask 25 ml Class AW, Blue Graduation, PE Stopper – NS 10/19

Introduction to Duran 25 ml Class AW volumetric flask

The DURAN® 25 ml Class AW volumetric flask (code 246781455) is a high-precision volumetric measuring instrument manufactured by Duran (Germany). This instrument is specialized for preparing standard solutions, precise sample dilutions, and analytical tests in the laboratory.

Outstanding features

• Fabricated from borosilicate 3.3 glass, providing high durability, heat resistance, and excellent chemical resistance.
• A clear blue graduation mark on the neck assists users in easily aligning the liquid meniscus at the 25 ml volume level.
• Equipped with an NS 10/19 ground joint neck accompanied by a tight-fitting polyethylene (PE) stopper to minimize solution evaporation.
• Complies with Class AW accuracy and includes a batch certificate to facilitate quality traceability.

Applications

• Preparation of standard solutions and analytical chemicals in pharmaceutical, food, and environmental testing laboratories.
• Sample solution dilution with high volumetric accuracy for physicochemical analytical methods.
• Used in scientific research and chemical testing at institutes and training centers.

Frequently Asked Questions

What type of stopper does this Duran 25 ml volumetric flask use?
The product uses a polyethylene (PE) stopper, fitting the standard NS 10/19 neck size.

Does the product come with a quality certificate?
The flask is supplied with a batch certificate from the manufacturer Duran for quality management and documentation purposes.