The Pyrex Brand 5660 Lifetime Red Volumetric Flask, 50 mL, case of 12, provides permanent legibility and accuracy thanks to its red etched graduation mark and Class A machine-blown borosilicate glass construction. With a ±0.05 mL tolerance, No. 9 glass stopper, and sealed heavy-tubing neck, this calibrated “to contain” flask delivers reliable long-term performance while meeting ASTM E-694, E-542, and E-288 standards.
Product Features
- Lifetime Red etched graduation for permanent, high-visibility markings
- Durable machine-blown borosilicate glass body with sealed neck
- 50 mL capacity with ±0.05 mL tolerance
- Includes No. 9 glass stopper
- Calibrated “to contain” to Class A tolerances
What’s Included
- Volumetric flask and stopper
Benefits
- Eliminates worn off markings for long-lasting accuracy
- Sturdy construction ideal for frequent laboratory use
- Meets ASTM calibration standards for precise solution preparation
Why Choose Pyrex Brand 5660 Lifetime Red Volumetric Flask, 50 mL, Case of 12?
This flask offers the perfect combination of durability, precision, and easy readability for demanding analytical, research, and educational laboratory applications.
