Normax Volumetric Flask Amber Glass with Glass Stopper 31 886 36V (250 mL)
The Normax Volumetric Flask 31 886 36V (250 mL) provides Class A volumetric accuracy while ensuring full protection for light-sensitive reagents. Manufactured from amber borosilicate glass, this flask shields solutions from UV and visible light, preserving chemical stability during preparation and storage. The ground glass stopper forms a secure, airtight seal, and the white graduation mark offers high contrast for precise meniscus reading. Produced according to ISO 1042, each flask is supplied with a Certificate of Performance, ensuring verified and traceable calibration.
Key Features
Class A Precision: Complies with ISO 1042 requirements for highly accurate volumetric work.
Amber Borosilicate Glass: Protects photosensitive chemicals from light degradation.
Ground Glass Stopper: Ensures a tight, contamination-free seal.
White Graduation Line: Provides clear visibility and consistent meniscus alignment.
250 mL Capacity: Suitable for preparing standard solutions, calibration reagents, titration dilutions, and analytical preparations.
Certificate of Performance: Verifies calibrated accuracy for regulated laboratory environments (GMP/SOP/QC).
Durable Construction: Resistant to chemicals and temperature variations.
Specifications
| Parameter | Description |
|---|---|
| Brand | Normax |
| Model | 31 886 36V |
| Capacity | 250 mL |
| Accuracy Class | Class A |
| Material | Amber Borosilicate Glass |
| Stopper Type | Ground Glass |
| Graduation | White |
| Standard | ISO 1042 |
| Certificate | Included |
| Light Protection | Yes (Amber Glass) |
| Autoclavable | Yes |
| Chemical Resistance | Excellent |
Applications
Light-sensitive reagents: Iodine solutions, silver nitrate, ferric salts, phenolic reagents, and photoreactive compositions.
Analytical chemistry: High-precision standard solutions and accurate dilution series.
Pharmaceutical & QC laboratories: Suitable for validated and regulated workflows that require certified Class A glassware.
Environmental labs: Preparation of calibration standards and indicator solutions.
Academic & research institutions: Ideal for training in accurate volumetric analysis.
Handling & Maintenance
Wash using mild, non-abrasive detergent to protect the white graduation line.
Rinse with distilled or deionized water before volumetric use.
Dry the external surface before reading the meniscus.
Avoid sudden temperature changes to protect the amber coating.
Store upright and keep the stopper removed to prevent moisture accumulation.
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