Volumetric Flask Class A with PE Stopper — Batch Certificate

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

The Glassco Class A volumetric flask with PE stopper is a high-precision borosilicate 3.3 glass volumetric flask manufactured to ISO 1042 and DIN 12664 standards. Designed for the accurate preparation of solutions at a precisely defined volume, these flasks are an essential item of volumetric glassware in pharmaceutical QC, analytical chemistry, method development, calibration standard preparation, and regulated research laboratory environments.

Each flask is supplied with a batch conformity certificate confirming compliance with Class A accuracy tolerances — providing the documented traceability required for volumetric glassware used in validated analytical methods, GLP-compliant research facilities, and accredited testing laboratory applications. Available in capacities from 5mL to 2000mL with matching NS ground glass neck sizes, these flasks are supplied from Glassco’s European warehouse in the Netherlands for fast and reliable delivery across Ireland.

Key Features

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 — the internationally recognised standards for single-mark volumetric flasks. Class A flasks offer the tightest tolerance grades available for volumetric flasks, making them the appropriate choice for pharmaceutical QC, calibration solution preparation, and any application where the highest documented volumetric accuracy is required.

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. This batch certification provides documented traceability supporting the qualification and compliance requirements of 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, chemically resistant seal for solution storage. The PE stopper is compatible with a wide range of aqueous and organic solvent-based solutions commonly prepared in analytical chemistry and pharmaceutical QC workflows.

NS Ground Glass Neck

The ground glass neck with NS (Normalschliff) standard taper joint ensures compatibility with standard laboratory stoppers, adapters, and fittings — providing flexibility for use across a range of laboratory setups and configurations. Each capacity is supplied with the appropriate NS joint size for that volume range.

Borosilicate 3.3 Glass

Manufactured from borosilicate 3.3 glass, these volumetric flasks provide excellent chemical resistance to the majority of acids, bases, and organic solvents encountered in routine laboratory use — ensuring solution integrity and accurate measurement across a wide range of analytical applications.

White Graduation Markings

Clear white graduation markings provide a single calibration ring at the defined volume — enabling accurate and reproducible solution preparation with clear meniscus reading under standard laboratory lighting conditions.

EU Warehouse — Fast Delivery to Ireland

Supplied from Glassco’s European distribution warehouse in the Netherlands, these volumetric flasks are available for fast and reliable delivery across Ireland — significantly shorter lead times than direct import from outside the EU, with no customs complexity or import uncertainty.

Technical Specifications

Capacity, NS Joint Size and Stock Reference

Applications

• Pharmaceutical QC solution preparation — accurate preparation of reagents, mobile phases, and reference standards for validated analytical methods
• Calibration standard preparation — precise single-volume solution preparation for calibration curves and reference solutions
• Analytical chemistry — accurate volumetric solution preparation for HPLC, UV-Vis, titration, and other analytical techniques
• GLP-compliant research — certified Class A volumetric glassware supporting qualification documentation requirements
• Method development and validation — precise solution preparation during analytical method development and formal validation studies
• Accredited testing laboratories — batch-certified volumetric glassware meeting ISO documentation requirements

Clear vs Amber — Which Volumetric Flask Do You Need?

Clear borosilicate volumetric flasks are appropriate for the vast majority of analytical and preparative chemistry applications. For the preparation and storage of light-sensitive solutions — including photolabile pharmaceutical reference standards, certain indicator solutions, and light-sensitive reagents — the Glassco Class A Amber Volumetric Flask provides UV and visible light protection to maintain solution integrity over time.

Availability in Ireland

Glassco Class A clear 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 volumetric flask standards and selection, refer to guidance published by ISO (International Organisation for Standardisation) on laboratory glassware specifications.

To request a quote, contact our team or use the Request a Quote button above.