Amber Volumetric Flask, Serialized, With Penny Head Stopper CLASS A
Product Code : EL-VF-10261
Quick answer: This is a Class-A tolerance amber borosilicate volumetric flask with an individual serial number and a penny head stopper, supplied across capacities from 5ml to 2000ml with tolerance and stopper size varying by capacity.
| Capacity (ml) | Tolerance (±ml) | Stopper Size (mm) |
|---|---|---|
| 5 | 0.02 | 9 |
| 5 | 0.08 | 13 |
| 10 | 0.02 | 9 |
| 15 | 0.08 | 13 |
| 20 | 0.03 | 9 |
| 20 | 0.08 | 13 |
| 25 | 0.03 | 9 |
| 25 | 0.08 | 13 |
| 50 | 0.05 | 9 |
| 50 | 0.08 | 13 |
| 100 | 0.08 | 13 |
| 100 | 0.10 | 16 |
| 200 | 0.10 | 16 |
| 200 | 0.20 | 19 |
| 250 | 0.12 | 16 |
| 250 | 0.20 | 19 |
| 500 | 0.20 | 19 |
| 1000 | 0.30 | 22 |
| 2000 | 0.50 | 27 |
Why Choose the Serialized Version
Unlike the unserialized version of this flask, each Serialized flask carries its own individual identification number etched onto the glass, which matters when a lab needs to trace a specific flask back to a calibration record, a batch certificate, or an audit trail — common requirements in accredited testing labs and pharmaceutical QC. Where that traceability is not required, the unserialized version of the same Class-A amber flask is a lower-cost equivalent.
Frequently Asked Questions
What does "serialized" mean on this flask?
Each flask carries its own individual identification number etched onto the glass, allowing it to be traced to a specific calibration record.
What stopper does this flask use?
It uses a penny head stopper, sized to match each capacity.
Why choose serialized over unserialized?
Serialized flasks support traceability requirements common in accredited testing and pharmaceutical QC labs; where that is not required, the unserialized version is a lower-cost equivalent.
Related Products
Explore more from the Volumetric Flasks range, including Amber Volumetric Flasks, Unserialized With Penny Head Stopper Class-A and Amber Volumetric Flask, With PE Stopper Class-A.
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Last updated: September 2026.