Normax Volumetric Flask Clear Glass with Plastic Stopper 50mL

Normax Volumetric Flask Clear Glass with Plastic Stopper 31 686 18 (50 mL)

The Normax Volumetric Flask 31 686 18 (50 mL) delivers Class A accuracy for laboratories that prepare precise standard solutions and controlled dilutions. Its borosilicate glass body gives excellent clarity, strong chemical resistance, and dependable thermal performance. The plastic stopper seals the flask securely, while the blue graduation line provides a clear reference for accurate and consistent meniscus reading. Built according to ISO 1042, the flask includes a Certificate of Performance, ensuring traceable and verified calibration for analytical and regulated work.

Key Features

• Class A Precision: Meets ISO 1042 requirements and supports high-accuracy volumetric preparation.

• Plastic Stopper: Forms a secure, lightweight seal that protects the solution from contamination and evaporation.

• Borosilicate Glass: Resists chemicals, heat, and thermal shock during everyday laboratory use.

• Blue Graduation Line: Offers high contrast for sharp and reliable meniscus alignment.

• 50 mL Capacity: Ideal for standard solutions, titration reagents, calibration samples, and accurate small-volume dilutions.

• Certificate of Performance: Confirms traceable calibration suitable for GMP/SOP workflows.

• Clear Glass Construction: Allows easy inspection of solution clarity and color.

Specifications

Applications

• Analytical chemistry: Preparing accurate standard solutions and dilution series.

• Pharmaceutical & QC labs: Supports regulated procedures requiring certified volumetric accuracy.

• Environmental testing: Suitable for buffer solutions, reagent preparation, and trace-level analysis.

• Industrial R&D: Works well for formulation, controlled solution preparation, and micro-scale experiments.

• Academic & research labs: Helps students practice proper volumetric techniques.

Handling & Maintenance

• Clean with mild, non-abrasive detergent to protect the graduation mark.

• Rinse with distilled or deionized water before precise measurements.

• Dry the flask’s exterior to ensure accuracy when reading the meniscus.

• Avoid rapid temperature changes to protect the borosilicate glass.

• Store upright and keep the stopper separate to prevent internal moisture.