Burettes, Automatic, PTFE Stopcock

With Individual Class 'A' Certificate. • Printed in white colour. • Highly resistant to chemical attack

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Material: Borosilicate glass with PTFE stopcock (needle valve) and rubber bellow for automatic filling.
Accuracy Classes: Class A (high precision, often with individual certificate) and Class B (general lab use).
Capacities & Divisions:
- 10 mL: 0.05 mL division,
  ±0.03plus or minus 0.03
  ±0.03 mL tolerance (Class A).
- 25 mL: 0.10 mL division,
  ±0.05plus or minus 0.05
  ±0.05 mL tolerance (Class A).
- 50 mL: 0.10 mL division,
  ±0.05plus or minus 0.05
  ±0.05 mL tolerance (Class A).
- 100 mL: 0.20 mL division,
  ±0.10plus or minus 0.10
  ±0.10 mL tolerance (Class A).
Stopcock Type: PTFE needle valve or intermediate key stopcock, resistant to chemical attack and reducing the need for grease.
Features: Automatic zeroing, white enamel markings, optional Schellbach stripe for easier reading.
Reservoir Capacity: Generally 500 mL for 10 mL burettes, and 2000 mL for 25, 50, and 100 mL burettes.