Normax Volumetric Flask, Clear Glass, with Plastic Stopper 31 686 09 10 mL
The Normax Volumetric Flask 31 686 09 (10 mL) delivers Class A precision for laboratories that handle small-volume standard solutions. Its borosilicate glass body offers strong chemical durability, excellent clarity, and stable thermal performance. The plastic stopper seals the flask securely, and the blue graduation mark gives a sharp, easy-to-read reference for accurate meniscus alignment. Normax follows ISO 1042 requirements and supplies a Certificate of Performance, allowing users to work with verified and traceable accuracy.
Key Features
Class A Accuracy: Meets ISO 1042 standards for reliable volumetric measurements.
Plastic Stopper: Provides a tight, lightweight seal to protect solutions from contamination or evaporation.
Borosilicate Glass Construction: Withstands chemical exposure, heat, and rapid temperature shifts.
Blue Graduation Mark: Offers high contrast for clear and consistent meniscus reading.
10 mL Capacity: Suitable for preparing micro-volume standard solutions, calibration samples, and analytical dilutions.
Certificate of Performance: Confirms traceable calibration for SOP/GMP laboratory workflows.
Clear Glass Body: Allows full visibility for checking solution clarity and purity.
Specifications
| Parameter | Description |
|---|---|
| Brand | Normax |
| Model | 31 686 09 |
| Capacity | 10 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: Ideal for preparing small-volume standard solutions and dilution series.
Pharmaceutical & QC labs: Supports precise and regulated workflows requiring certified accuracy.
Environmental testing: Suitable for indicator solutions and trace-level reagent preparation.
Industrial R&D: Works well for micro-formulation and controlled experimental setups.
Academic & research settings: Helps students learn correct volumetric techniques with reliable Class A glassware.
Handling & Maintenance
Clean with mild, non-abrasive detergent to protect the graduation mark.
Rinse with distilled or deionized water before critical measurements.
Dry the exterior for an accurate meniscus reading.
Avoid sudden temperature changes to protect the glass.
Store upright and keep the stopper separate to prevent moisture buildup.
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