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DURAN® Amber Glass Volumetric Flask 500 ml, Class A, White Graduation, PE Stopper – Volumetric Flask NS 19/26

SKU: 246764459

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The DURAN® Volumetric Flask 500 ml is manufactured from amber borosilicate glass 3.3, protecting light-sensitive solutions from the effects of UV rays and strong light. The flask features a white graduation mark for clear and accurate volume readings. Compliant with Class A standards, the product comes with a polyethylene (PE) stopper and a batch certificate to ensure precision and quality traceability. Designed with a standard NS 19/26 neck, it is ideal for preparing standard solutions, diluting, and storing light-sensitive solutions in laboratories.

Introduction to Duran 500 ml amber volumetric flask

The DURAN® 500 ml volumetric flask (code 246764459) from Duran (Germany) is a high-precision volumetric instrument made from amber borosilicate 3.3 glass. It is specialized for preparing, making up, and storing light-sensitive solution samples in laboratories. The instrument complies with Class A accuracy and includes a polyethylene (PE) stopper.

Outstanding features

Amber borosilicate 3.3 glass blocks UV radiation and strong light to protect solutions.
Volume accuracy meets Class A standards, complete with a batch certificate for quality control and traceability.
A distinct white ring mark provides high contrast, aiding precise meniscus reading.
Standard ground neck size NS 19/26, fitted with a tightly sealing PE plastic stopper to minimize solvent loss and evaporation.

Applications

Preparing standard solutions and light-sensitive reagents in pharmaceutical and chemical testing.
Diluting analytical samples to precise volume ratios for testing procedures.
Preserving and storing solutions prone to photochemical degradation in the laboratory.

Frequently Asked Questions

Does the Duran 500 ml amber volumetric flask have a quality certificate?
The product meets Class A accuracy and includes a batch certificate from Duran.

Bình sử dụng cỡ nút và chất liệu gì?
Bình có kích thước cổ mài chuẩn NS 19/26 và đi kèm nút đậy làm bằng nhựa polyethylene (PE).