Burette Straight Clear PTFE Stopcock is manufactured from high-quality borosilicate glass and designed for accurate, repeatable volumetric analysis in professional laboratories. The burette features a straight bore construction combined with a PTFE stopcock, delivering exceptionally smooth, precise, and chemically inert flow control during titration.

Produced in accordance with DIN/ISO standards, this burette ensures high measurement accuracy and consistency. The clearly visible blue graduation markings provide excellent contrast on the transparent glass body, enabling easy and accurate volume readings under routine and intensive laboratory conditions.

The PTFE stopcock offers superior chemical resistance and grease-free operation, eliminating contamination risks and reducing maintenance. Its straight bore ensures uniform internal diameter, supporting controlled dispensing and reliable, reproducible results.

This straight burette with PTFE stopcock is ideally suited for chemical, pharmaceutical, educational, and research laboratories where precision, cleanliness, and durability are critical.

Typical Applications

• Acid–base, redox, and complexometric titrations

• Quantitative chemical analysis

• Analytical and educational laboratory experiments

• Pharmaceutical and research laboratories

Key Advantages

• High-quality borosilicate glass construction

• Straight bore design for uniform, controlled flow

• PTFE stopcock for smooth, grease-free operation

• Clear blue graduations for excellent readability

• Manufactured according to DIN / ISO standards

Technical Specifications

• Product Type: Straight Burette

• Material: Borosilicate glass

• Stopcock: PTFE stopcock (grease-free)

• Bore Type: Straight bore

• Graduation Color: Blue

• Standards: DIN / ISO

Safety & Storage Instructions

• Inspect the burette and stopcock for damage before use

• Avoid mechanical shock and excessive force on the stopcock

• Clean thoroughly after each use to maintain accuracy

• Store vertically in a burette stand or protective holder

Usage Notes

• Rinse the burette with the titrant solution before use

• Operate the PTFE stopcock gently for precise flow control

• Ensure the stopcock is fully closed before filling