Normax Volumetric Flask Clear Glass with Plastic Stopper 31 686 44 (500 mL)
The Normax Volumetric Flask 31 686 44 (500 mL) delivers Class A volumetric accuracy for laboratories that prepare medium-to-large standard solutions. Made from high-quality borosilicate glass, the flask offers excellent clarity, strong chemical resistance, and reliable thermal stability. The plastic stopper seals the contents securely, while the blue graduation mark provides a sharp and highly visible reference for precise meniscus alignment. Normax builds this flask in accordance with ISO 1042 and supplies a Certificate of Performance, ensuring verified and traceable calibration for analytical and regulated environments.
Key Features
Class A Precision: Meets ISO 1042 accuracy requirements for high-quality volumetric measurements.
Plastic Stopper: Provides a lightweight and secure seal to prevent evaporation and contamination.
Borosilicate Glass: Offers excellent thermal resistance, clarity, and chemical durability.
Blue Graduation Line: Ensures high visibility for accurate and consistent measurements.
500 mL Capacity: Ideal for preparing calibration standards, titration solutions, and controlled dilutions.
Certificate of Performance: Confirms traceable calibration for laboratories following SOP or GMP guidelines.
Clear Glass Body: Lets users easily inspect solution clarity and physical characteristics.
Specifications
| Parameter | Description |
|---|---|
| Brand | Normax |
| Model | 31 686 44 |
| Capacity | 500 mL |
| Accuracy Class | Class A |
| Material | Borosilicate Glass |
| Stopper Type | Plastic |
| Graduation | Blue |
| Standard | ISO 1042 |
| Certificate | Included |
| Autoclavable | Flask yes; stopper material dependent |
| Chemical Resistance | Excellent |
Applications
Analytical chemistry: Preparation of standard solutions and accurate dilution series.
Pharmaceutical & QC labs: Suitable for regulated workflows requiring certified volumetric glassware.
Environmental laboratories: Ideal for buffer preparation, indicator solutions, and calibration reagents.
Industrial R&D: Supports formulation work and precise solution preparation.
Academic and research facilities: Helps students practice correct volumetric techniques.
Handling & Maintenance
Wash with mild, non-abrasive detergent to preserve the graduation mark.
Rinse with distilled or deionized water before precise measurements.
Dry the outer surface to ensure correct meniscus reading.
Avoid rapid temperature changes to protect the glass.
Store upright and keep the stopper separate to prevent moisture buildup.
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