DURAN® Volumetric Flask 200 ml Class A, Blue Graduation, PE Stopper – Volumetric Flask NS 14/23

Introduction to DURAN 200 ml Class A volumetric flask

The DURAN 200 ml Class A volumetric flask (code 246783259) is a specialized volumetric measuring instrument manufactured by Duran (Germany). This instrument is primarily used for accurately measuring, diluting, and preparing sample solutions in laboratories. The flask body is made of high-quality borosilicate glass 3.3, offering durable heat and chemical resistance.

Outstanding features

• Manufactured from borosilicate glass 3.3 with high mechanical strength, good thermal resistance, and effective chemical corrosion resistance.
• Class A accuracy with a clear blue graduation mark, helping operators easily observe the meniscus.
• Standard NS 14/23 ground joint neck design includes a tightly fitting polyethylene (PE) stopper, minimizing solution loss and evaporation.
• Supplied with a batch certificate, convenient for verification and technical traceability.

Applications

• Preparing standard solutions and calibrating chemicals in chemical and pharmaceutical testing laboratories.
• Accurately measuring liquid volumes at 200 ml for quantitative analysis.
• Diluting test samples in scientific research, environmental testing, and the food industry.

Frequently Asked Questions

Does the product come with a quality certificate?
Each DURAN 200 ml Class A volumetric flask comes with a batch certificate, making it easy for users to maintain laboratory documentation.

What type of stopper does the flask use?
The product includes a polyethylene (PE) stopper that fits the NS 14/23 ground joint neck perfectly.