Burettes Straight Bore with PTFE Key Class A

Burettes Straight Bore with PTFE Key Class A


S.No Capacity (ml) Graduation (ml) Tolerance ± (ml)
1. 5 0.02 0.01
2. 10 0.05 0.03
3. 10 0.02 0.02
4. 25 0.10 0.05
5. 25 0.05 0.03
6. 50 0.10 0.05
7. 100 0.20 0.10

Burette, Straight Bore with PTFE Key CLASS A

High-Precision Volumetric Laboratory Glassware

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.
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