Precision Glass Burets - PTFE Stopcock - Heathrow Scientific

Achieve unparalleled accuracy in your analytical titrations with Heathrow Scientific Precision Glass Burets. These specialized volumetric instruments are an absolute necessity for strict quantitative chemical analysis, pharmaceutical testing, and environmental water quality assessments. Manufactured from highly transparent, low-expansion borosilicate glass, they ensure flawless optical clarity, allowing technicians to monitor delicate colorimetric changes and read the meniscus with exacting precision.

To guarantee a perfectly controlled, drop-by-drop liquid delivery, each buret is equipped with a premium PTFE (Polytetrafluoroethylene) stopcock. Unlike traditional glass stopcocks, the PTFE key is inherently self-lubricating, completely eliminating the need for messy stopcock grease that can contaminate sensitive reagents. Furthermore, the PTFE material is virtually inert, ensuring zero chemical reactivity and preventing the valve from freezing or seizing shut over time. Available in 10 mL, 25 mL, and 50 mL capacities to accommodate micro-titrations and large-scale standardizations alike.

Features and Benefits

• Supplied with PTFE stopcocks to eliminate freezing & lubricant contamination

• Made from high-quality borosilicate tubing with a low coefficient of expansion

• Feature permanent graduation markings that are large and easy-to-read

• Meet ASTM E-287 Class A Specifications

• Stopcock Bore: 0.2 inches

Specifications

• Autoclavable: True

• Capacity: 10 mL

• Color: Clear

• Graduation Interval: 0.05 mL

• Material: Glass

• Quantity: 1 Each

• Tolerance: ±0.02 mL

• Volume: 10 mL

• Warranty: 1 Year

Academic and Institutional Pricing

LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.