Volumetric Flask, 2000mL - Class A - Borosilicate Glass, Polyethylene Stopper, 29/32 Socket - QR Code Marking for

Key features

• Class A Accuracy with Traceable Calibration — single white graduation mark holds a ±0.600mL tolerance conforming to ISO 1042; a QR code printed on the flask body links directly to the batch calibration certificate (scan works best against a solid white background), so research and teaching labs have documented traceability without filing paper records
• Borosilicate 3.3 Glass Construction — the flask body is heavy-duty borosilicate 3.3 glass rated to a softening point of 820°C, annealing point of 565°C, and strain point of 515°C, giving it the thermal stability needed for heating cycles, autoclaving, and microwaving without risk of thermal shock failure
• NS29/32 Socket with Inert Polyethylene Stopper — the ground-glass NS29/32 neck accepts the included polyethylene stopper for a secure, solvent-resistant seal; the stopper material is chemically inert and won't react with aqueous solutions or common lab reagents stored during preparation or transport
• Reinforced Rim and Practical Dimensions — the impact-resistant reinforced rim extends flask service life in high-turnover classroom and bench settings; overall dimensions are 6.25 inches in diameter and 14.75 inches tall, with a 27.5mm inner mouth diameter, sized to sit stably on a standard lab bench while holding a full 2000mL working volume
• What's Included — one 2000mL Class A borosilicate 3.3 volumetric flask with a single calibration mark and QR code, one NS29/32 polyethylene stopper; suited for volumetric analysis, solution preparation, and quantitative work in university, research, and advanced secondary-school chemistry labs

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