Normax Volumetric Flask Clear Glass with Glass Stopper 20mL

Normax Volumetric Flask, Clear Glass, with Glass Stopper 31 686 12V 20mL

The Normax Volumetric Flask 31 686 12V (20 mL) delivers Class A precision for laboratories that work with small-volume standard solutions. Its borosilicate glass body offers strong chemical resistance, excellent clarity, and reliable thermal stability. The flask uses a ground glass stopper for a tight and secure seal, and the blue graduation mark gives a clear reference for accurate meniscus alignment. Normax ensures ISO 1042 compliance and provides a Certificate of Performance, so users can trust the calibration for analytical and regulated applications.

Key Features

• Class A Accuracy: Fully meets ISO 1042 standards for certified volumetric precision.

• Ground Glass Stopper: Provides an airtight seal, preventing evaporation and contamination.

• High-quality Borosilicate Glass: Resistant to chemicals, heat, and thermal shock.

• Blue Graduation Mark: High-contrast marking ensures clear and precise meniscus alignment.

• 20 mL Capacity: Ideal for preparing standard solutions, calibration samples, and precise small-volume dilutions.

• Certificate of Performance: Guarantees traceable calibration suitable for GMP/SOP environments.

• Clear Glass Body: Ensures easy visual inspection of solution clarity and uniformity.

Specifications

Applications

• Analytical chemistry: Preparation of micro-volume standard solutions and precise dilutions.

• Pharmaceutical & QC labs: Suitable for validated workflows requiring certified volumetric accuracy.

• Environmental testing: Preparation of indicators and sample solutions.

• Industrial laboratories: Ideal for formulation, R&D, and small-scale analysis.

• Research & education: Useful for instruction in precision volumetric techniques.

Handling & Maintenance

• Clean with mild, non-abrasive detergent; avoid scrubbing near the graduation mark.

• Rinse with deionized or distilled water to maintain accuracy.

• Dry the outer surface before reading the meniscus.

• Avoid sudden temperature changes to prevent thermal shock.

• Store upright with the stopper removed to prevent moisture accumulation.