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This 25 mL Class A volumetric flask is engineered for high-precision volumetric measurements in analytical, pharmaceutical, and research laboratories. The flask is manufactured from borosilicate glass 3.3, ensuring superior thermal resistance, chemical stability, and mechanical durability under routine laboratory conditions.
The flask complies with ISO 1042 standards and is supplied with a batch calibration certificate, ensuring traceability and quality assurance across production lots. Its blue printed calibration mark is permanently fused onto the glass and resistant to chemicals, abrasion, and standard laboratory cleaning processes.
The narrow-neck design and a precision-etched calibration line allow for highly accurate liquid volume measurement, while the accompanying polyethylene (PE) stopper ensures a secure seal without chemical interference, making it suitable for temporary storage and solution preparation. This flask is especially suitable for quantitative volumetric analysis where high measurement fidelity is essential.
| Item Type | Volumetric Flask |
| Volume | 25mL |
| Accuracy Class | Class A |
| Material | Borosilicate Glass 3.3 |
| Stopper Material | Polyethylene (PE) |
| Compliance Standard | ISO 1042 |
| Calibration | Batch Certificate |
| Print Color | Blue |
| Neck Size (N/S) | 10/19 |
| Tolerance (± mL) | 0.040 |
| Color | Clear |
| Quantity per Pack | 2 |
A: This flask has a capacity of 25 mL, making it suitable for small-volume, high-accuracy liquid measurements in analytical and research applications.
A: The flask is classified as Class A, offering high measurement precision with a tolerance of ±0.040 mL.
A: It is fitted with a polyethylene (PE) stopper, offering a chemically inert seal that is secure and reusable without interfering with analytical results.
A: Yes, the flask is batch calibrated and comes with a Batch Calibration Certificate confirming compliance with volumetric accuracy standards.
A: The flask conforms to ISO 1042, which specifies requirements for the design, tolerances, and calibration of volumetric glassware.
A: It is manufactured from borosilicate glass 3.3, known for:
• Superior chemical resistance
• High thermal stability
• Excellent mechanical durability
A: Yes, the blue calibration line is permanently fused into the glass and is resistant to chemical wear and repeated cleaning.
A: Yes, the flask is suitable for temporary storage and preparation of solutions thanks to its secure PE stopper and chemical-resistant design.
A: The flask features a ground-glass joint with a neck size of 10/19.
A: Each pack contains 2 flasks.
A: The borosilicate glass construction provides compatibility with most common acids, alkalis, solvents, and aqueous solutions used in laboratory settings.
A: For official information about ISO 1042 standards, visit the ISO website.
| Colour | Clear |
|---|