Normax Volumetric Flask, Clear Glass, with Glass Stopper 31 686 44V 500 mL
The Normax Volumetric Flask 31 686 44V (500 mL) provides Class A accuracy for laboratories that prepare precise standard solutions and calibrated dilutions. Its borosilicate glass body ensures strong chemical resistance, excellent clarity, and reliable thermal stability. The ground glass stopper seals the flask tightly, while the blue graduation line gives a sharp and clear meniscus reference. Normax manufactures this flask according to ISO 1042 and includes a Certificate of Performance, allowing users to work with confidence in regulated and analytical environments.
Key Features
Class A Precision: Follows ISO 1042 standards and supports accurate volumetric preparation.
Ground Glass Stopper: Forms an airtight seal to protect solutions from contamination or evaporation.
Durable Borosilicate Glass: Handles chemical exposure, high temperatures, and rapid thermal shifts.
Blue Graduation Mark: Provides high contrast for precise and consistent meniscus alignment.
500 mL Capacity: Suitable for preparing stock solutions, calibration standards, titrations, and controlled large-volume dilutions.
Certificate of Performance: Confirms traceable calibration for GMP/SOP workflows.
Clear Glass: Gives users full visibility to check solution clarity and quality.
Specifications
| Parameter | Description |
|---|---|
| Brand | Normax |
| Model | 31 686 44V |
| Capacity | 500 mL |
| Accuracy Class | Class A |
| Material | Borosilicate Glass |
| Stopper Type | Ground Glass |
| Graduation | Blue |
| Standard | ISO 1042 |
| Certificate | Included |
| Autoclavable | Yes |
| Chemical Resistance | Excellent |
Applications
Analytical chemistry: Users prepare precise standard solutions and test reagents.
Pharmaceutical & QC laboratories: Suitable for regulated tasks requiring certified volumetric accuracy.
Environmental labs: Ideal for preparing calibration standards and buffer solutions.
Industrial laboratories: Supports formulation work, research tasks, and large-volume dilutions.
Academic & research settings: Helps students practice high-precision volumetric techniques.
Handling & Maintenance
Clean with mild, non-abrasive detergent to protect the graduation mark.
Rinse with distilled or deionized water before accurate measurements.
Dry the outside to ensure proper meniscus reading.
Avoid sudden temperature changes to protect the glass.
Store upright and keep the stopper separate to prevent internal moisture accumulation.
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