250ml Glassco Borosilicate Glass Volumetric Flask With Plastic Stopper

250ml Borosilicate Glass Volumetric Flask With Plastic Stopper – Class A

The Glassco 250ml Borosilicate Glass Volumetric Flask With Plastic Stopper gives you verified precision for accurate preparation and measurement of laboratory solutions. Manufactured from ASTM E438 Type I Class A Borosilicate Glass 3.3, it offers chemical resistance, heat stability and dimensional reliability for your analytical work.

Calibrated to ISO 1042, this Class A flask features a blue printed graduation and a finely diamond ground meniscus for clear alignment during measurement. The precision formed neck allows smooth filling to the calibration line, whilst the plastic stopper provides a secure, chemical resistant seal to protect your prepared solutions. Each flask is batch certified to confirm traceable calibration accuracy and help you maintain compliance in regulated environments. Designed for busy analytical labs, it ensures consistent volumetric performance through repeated use.

Practical Applications
– Preparation and dilution of standard and calibration solutions
– Analytical chemistry and quantitative testing
– Quality control and production measurement
– Research and training in volumetric glassware use
– Laboratory procedures requiring Class A accuracy

Key Features
– Class A calibration, 250 mL capacity
– ASTM E438 Type I Class A Borosilicate 3.3 glass construction
– Blue print with diamond ground meniscus mark
– Precision formed neck for controlled filling and reading
– Chemical resistant polyethylene stopper (included)
– Batch certified for traceable volumetric accuracy

Standards
– ISO 1042
– ASTM E438 Type I Class A

Specifications
– Capacity: 250 mL
– Material: Borosilicate Glass 3.3
– Colour: Clear
– Graduated: Yes (blue print, diamond ground meniscus)
– Calibration: Class A (20 °C TC, In)
– Batch Certification: Available for download from the manufacturer’s website
– Socket Size: 14/23
– Stopper: Polyethylene (PE)
– Brand: Glassco

Accurate, traceable and easy to handle, the Glassco 250 mL Class A volumetric flask gives you confidence in every preparation, dilution and analytical measurement.