20ml Borosilicate Glass Volumetric Flask with Plastic Stopper – Class A
The Glassco 20 mL Class A volumetric flask offers you measured precision for everyday small-volume preparation and testing. Manufactured from ASTM E438 Type I Class A Borosilicate Glass 3.3, it delivers consistent accuracy, chemical resistance and dimensional stability during analytical work.
Each flask is calibrated to ISO 1042 and printed with a blue graduation and diamond ground meniscus mark for defined visual reference. The precision formed neck supports controlled filling to the calibration line, and the plastic stopper provides a secure, inert closure to prevent contamination or evaporation. Batch certification ensures traceable volumetric accuracy and supports compliance in quality controlled environments. Designed for busy analytical laboratories, it maintains performance and calibration accuracy through repeated use.
Practical Applications
– Preparation of accurate calibration and standard solutions
– Routine volumetric analysis and reagent measurement
– Quality control and research applications
– Small-scale testing in industrial or life science laboratories
– Training in volumetric glassware handling
Key Features
– Class A calibration, 20 mL capacity
– ASTM E438 Type I Class A Borosilicate 3.3 glass construction
– Blue print with diamond ground meniscus mark
– Precision formed neck for accurate filling and reading
– Chemical resistant polyethylene stopper (included)
– Batch certified for traceable accuracy
Standards
– ISO 1042
– ASTM E438 Type I Class A
Specifications
– Capacity: 20 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: 10/19
– Stopper: Polyethylene (PE)
– Brand: Glassco
Accurate, durable and laboratory compliant, the Glassco 20 mL Class A volumetric flask provides traceable precision for routine analytical and calibration procedures.
