Our Class A Straight Bore Burettes are precision-engineered for professional laboratories requiring the highest levels of accuracy in volumetric analysis. Manufactured from 3.3 Borosilicate Glass, these burettes offer superior chemical resistance and thermal stability.
✔PTFE Stopcock: Features a self-lubricating PTFE (Teflon) key that eliminates the need for grease, preventing contamination and stopcock seizure.
✔Class A Accuracy: Calibrated "To Deliver" (TD/Ex) within the strict error limits defined by ISO/DIN standards.
✔Permanent Graduations: High-contrast blue or white enamel markings ensure precise meniscus readings and long-term durability against cleaning agents.
Feature
Specification
Material
Borosilicate Glass 3.3 (Low Expansion)
Stopcock
Interchangeable PTFE Straight Bore
Compliance
ISO 385 / DIN 12700 Standards
Calibration Temp
Standard 20°C
Keywords: PTFE key burette, Class A glass burette, straight bore stopcock, volumetric titration, borosilicate 3.3 laboratory glassware, ISO 385 burette.