Normax Volumetric Flask Clear Glass with Plastic Stopper 31 686 32 (200 mL)
The Normax Volumetric Flask 31 686 32 (200 mL) delivers Class A accuracy for laboratories that prepare standard solutions and controlled dilutions. Its borosilicate glass construction provides excellent clarity, high chemical resistance, and stable thermal performance. The plastic stopper creates a secure seal, while the blue graduation mark gives a clear reference point for reliable meniscus alignment. Built according to ISO 1042, this flask comes with a Certificate of Performance, ensuring verified and traceable calibration for analytical and regulated applications.
Key Features
Class A Precision: Meets ISO 1042 standards and supports highly accurate volumetric work.
Plastic Stopper: Forms a lightweight, secure seal that protects the solution from evaporation and contamination.
Borosilicate Glass: Resists chemical attack, heat, and rapid temperature shifts.
Blue Graduation Line: Provides sharp visibility for consistent meniscus reading.
200 mL Capacity: Suitable for stock solutions, calibration standards, titration reagents, and controlled medium-volume dilutions.
Certificate of Performance: Confirms validated and traceable calibration for SOP/GMP laboratory environments.
Clear Glass Body: Allows users to easily check solution clarity and color.
Specifications
| Parameter | Description |
|---|---|
| Brand | Normax |
| Model | 31 686 32 |
| Capacity | 200 mL |
| Accuracy Class | Class A |
| Material | Borosilicate Glass |
| Stopper Type | Plastic |
| Graduation | Blue |
| Standard | ISO 1042 |
| Certificate | Included |
| Autoclavable | Flask yes; stopper depends on plastic type |
| Chemical Resistance | Excellent |
Applications
Analytical chemistry: Preparing standard solutions and accurate dilution series.
Pharmaceutical & QC labs: Suitable for validated, regulated workflows requiring certified volumetric accuracy.
Environmental testing: Works well for indicator solutions, calibration reagents, and buffer preparation.
Industrial R&D: Supports formulation work and controlled volumetric measurements.
Academic & research settings: Teaches students precise volumetric techniques using reliable Class A glassware.
Handling & Maintenance
Clean with mild, non-abrasive detergent to protect the graduation line.
Rinse with distilled or deionized water before accurate measurements.
Dry the exterior for proper meniscus reading.
Avoid sudden temperature changes to protect the glass.
Store upright and keep the stopper separate to prevent internal moisture buildup.
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