Amber Volumetric Flask Class A with PE Stopper — Batch Certificate

Glassco Class A Amber Volumetric Flask with PE Stopper — Batch Conformity Certificate

The Glassco Class A amber volumetric flask with PE stopper is a high-precision borosilicate 3.3 amber glass volumetric flask manufactured to ISO 1042 and DIN 12664 standards. Combining the highest Class A volumetric accuracy with the light-protective properties of amber glass, these flasks are specifically designed for the preparation and storage of light-sensitive solutions in pharmaceutical QC, analytical chemistry, stability studies, and regulated research laboratory environments.

Amber borosilicate glass blocks UV and visible light wavelengths that can degrade light-sensitive compounds, photolabile reference standards, and light-reactive reagents — protecting solution integrity and ensuring that accurately prepared solutions remain stable throughout their intended use period. Each flask is supplied with a batch conformity certificate and a PE stopper, and is available in capacities from 5mL to 2000mL. Supplied from Glassco’s European warehouse in the Netherlands for fast and reliable delivery across Ireland.

Key Features

Amber Glass — UV and Visible Light Protection

The amber borosilicate 3.3 glass construction provides protection against UV and visible light wavelengths that can cause photodegradation of light-sensitive solutions. This makes amber volumetric flasks the appropriate and required choice for preparing and storing photolabile pharmaceutical reference standards, light-sensitive indicators, certain buffer solutions, and reagents that degrade on exposure to light — particularly important in pharmaceutical stability studies and regulated analytical chemistry workflows.

Class A Accuracy — ISO 1042 and DIN 12664 Compliant

Manufactured to Class A volumetric accuracy tolerances in full compliance with ISO 1042 and DIN 12664. Class A tolerance grades provide the highest available volumetric accuracy for single-mark flasks, making these the appropriate choice for pharmaceutical QC, reference standard preparation, and all regulated analytical applications requiring documented and traceable volumetric accuracy.

Batch Conformity Certificate Supplied

Each order is supplied with a batch conformity certificate confirming compliance with ISO 1042 and DIN 12664 Class A accuracy requirements — providing the documented traceability required for regulated laboratory environments including pharmaceutical QC, GMP-compliant facilities, and accredited testing laboratories.

PE Stopper Included

Each flask is supplied complete with a polyethylene (PE) stopper, providing a secure and chemically resistant seal suitable for a wide range of aqueous and organic solvent-based solutions. The PE stopper combined with the amber glass body provides comprehensive protection for light-sensitive solutions during both preparation and storage.

NS Ground Glass Neck

The ground glass neck with NS standard taper joint ensures compatibility with standard laboratory stoppers, adapters, and fittings — providing flexibility across different laboratory configurations and setups.

Borosilicate 3.3 Glass

Manufactured from borosilicate 3.3 glass in amber colour, these flasks provide excellent chemical resistance alongside light-protective properties — maintaining solution integrity across a wide range of analytical chemistry and pharmaceutical QC applications.

EU Warehouse — Fast Delivery to Ireland

Supplied from Glassco’s European distribution warehouse in the Netherlands, these amber volumetric flasks are available for fast delivery across Ireland — with significantly shorter lead times than direct import from outside the EU.

Technical Specifications

Capacity, NS Joint Size and Stock Reference

Applications

• Pharmaceutical reference standard preparation — preparation and storage of photolabile reference standards requiring light protection to maintain stability
• Stability studies — accurate solution preparation for pharmaceutical stability testing where light exposure must be controlled and documented
• Light-sensitive analytical reagents — preparation of indicator solutions, fluorescent reagents, and other light-reactive analytical chemistry materials
• Pharmaceutical QC — preparation of assay solutions and mobile phases containing light-sensitive compounds
• Photosensitive buffer preparation — preparation and storage of buffers and solutions sensitive to UV or visible light degradation
• Accredited testing laboratories — batch-certified amber volumetric glassware meeting ISO documentation requirements

Amber vs Clear — Choosing the Right Volumetric Flask

Amber volumetric flasks are required when preparing or storing solutions containing light-sensitive compounds — where exposure to UV or visible light may cause photodegradation, affecting solution concentration and analytical accuracy. For standard analytical applications where light sensitivity is not a concern, the Glassco Class A Clear Volumetric Flask provides the same Class A accuracy and batch certification in standard transparent borosilicate glass.

Availability in Ireland

Glassco Class A amber volumetric flasks with PE stopper are available from Varen Scientific — Ireland’s authorised distributor for Glassco laboratory glassware. Supplied from the Glassco European warehouse in the Netherlands for fast delivery across Ireland.

For further technical information on light protection requirements for pharmaceutical reference standards, refer to guidance published by the Health Products Regulatory Authority (HPRA).

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