Labglass Volumetric Flask – Class A, 250ml (Borosilicate Glass, ISO 1042)

The Labglass 250ml Class A Volumetric Flask is a high‑precision laboratory vessel manufactured from durable 3.3 borosilicate glass, ensuring excellent chemical, thermal, and scratch resistance. Designed for analytical accuracy, the flask features blue‑printed markings with a single calibration line for exact volume measurement.

Each flask is fitted with a chemical‑resistant polypropylene stopper, providing a secure seal during the preparation, storage, or mixing of solutions. Fully compliant with ISO 1042 standards, this Class A flask ensures the highest volumetric accuracy required for rigorous school and laboratory work.

Key Features

• 250ml Class A volumetric flask for high‑accuracy solution preparation
• Constructed from premium 3.3 borosilicate glass
• Blue printed single calibration mark for precision
• Supplied with a chemical‑resistant polypropylene stopper
• Meets ISO 1042 volumetric accuracy standards
• Exceptional resistance to chemicals, heat, and thermal shock
• Suitable for precise analytical and quantitative laboratory work

Ideal for School Science Lessons

Perfect for GCSE and A‑Level chemistry, this 250ml Class A volumetric flask is essential for precision‑based experiments and demonstrations. It is particularly suited to:

• Preparing standard solutions for titrations
• Teaching and practising volumetric analysis
• Conducting accurate dilution and concentration calculations
• Supporting technician work requiring reliable measurement

Strong, precise, and designed for demanding teaching environments, the Labglass 250ml Class A Volumetric Flask is an essential tool for high‑quality, accurate chemistry education.