DURAN® amber volumetric flask, 5 ml, Class AW, white graduation, PE stopper – NS 10/19

Introduction to DURAN 5 ml amber volumetric flask

The DURAN 5 ml amber volumetric flask (catalog number: 246760954) is a high-grade volumetric instrument from Duran (Germany). The product is specially designed for preparing, diluting, and storing light-sensitive solutions or standards in laboratories. The brown borosilicate glass 3.3 body helps prevent the effects of UV rays on analytical samples.

Outstanding features

• Amber borosilicate glass 3.3 material effectively shields light and protects photosensitive compounds.
• Meets Class AW accuracy with a sharply contrasting white graduation mark, supporting accurate meniscus reading.
• Standard ground neck NS 10/19 comes with a snug-fitting polyethylene (PE) stopper, minimizing solvent evaporation.
• Supplied with a batch certificate, meeting documentation and data traceability requirements in analysis.

Applications

• Preparing standard solutions and light-sensitive chemicals in pharmaceutical testing laboratories.
• Accurate volume measurement at 5 ml level in chemical, environmental, and food analysis procedures.
• Temporary storage of micro-samples requiring protection against photo-degradation prior to analytical instrumentation.

Frequently Asked Questions

Does this volumetric flask include a calibration certificate?
The product meets Class AW accuracy and is supplied with a batch certificate for each production batch.

What type and size is the flask stopper?
The flask uses a polyethylene (PE) stopper fully compatible with standard ground joint size NS 10/19.