Amber Volumetric Flasks, Unserialized With Penny Head Stopper CLASS- A
Product Code : EL-VF-10243
Quick answer: This is a Class-A tolerance amber volumetric flask with a penny head stopper and no individual serial number, supplied across an 11-point capacity range from 5ml to 2000ml.
| Specification | Detail |
|---|---|
| Material | Amber (light-protective) glass |
| Tolerance class | Class-A |
| Serialization | Unserialized |
| Stopper | Penny head |
| Capacities | 5ml, 10ml, 20ml, 25ml, 50ml, 100ml, 200ml, 250ml, 500ml, 1000ml, 2000ml |
Penny Head Stopper, Unserialized: What This Means for Buyers
A penny head stopper has a flat, coin-like top that sits flush and is easy to grip and re-seat compared with a tall stopper, and being "unserialized" means the flask carries the Class-A tolerance marking but not an individual identification number etched onto the glass. This suits routine Class-A analytical work where certified accuracy matters but a per-flask serial record is not required by the buyer's protocol; labs that need individual traceability for a certificate or audit trail should specify the serialized version instead. Confirm the exact tolerance certificate requirement at enquiry stage.
Frequently Asked Questions
What does "unserialized" mean on this flask?
It means the flask does not carry an individual identification number, unlike a serialized Class-A flask.
What type of stopper does it use?
It uses a penny head stopper, with a flat, coin-like top.
What tolerance class is this flask?
It is a Class-A tolerance volumetric flask.
Related Products
Explore more from the Volumetric Flasks range, including Amber Volumetric Flasks, Class-A and Amber Volumetric Flask, Serialized, With Penny Head Stopper Class A.
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Last updated: September 2026.