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Six clear glass burettes with PTFE stopcocks in a row

Lab Safety Supply Inc

Lab Safety Supply Inc 25 mL PTFE Burette Grade B PK6

SKU CH-5087-PYT35

Pack of six 25 mL glass burettes with PTFE stopcocks, Grade B tolerance ±0.1 mL and 560 mm height

  • PTFE stopcock resists chemical attack during titrations
  • 25 mL capacity handles standard volumetric procedures
  • Grade B tolerance of ±0.1 mL meets routine accuracy needs
  • 560 mm overall height fits common burette stands
  • Pack of six supplies multiple workstations at once

25 mL PTFE Burette Pack of Six

This pack contains six straight-bore glass burettes each calibrated to 25 mL with 0.1 mL graduation increments. The Class B tolerance is ±0.1 mL. A PTFE stopcock and closure are included on every unit.

Capacity and Grade B headroom

Each burette delivers a usable range from 0 mL to 25 mL, suitable for routine titrations where Class B accuracy is accepted. The ±0.1 mL tolerance sets the limit for analytical precision, so work requiring tighter error bounds will need Class A glassware.

Integration into a lab setup

The 560 mm overall height demands a stand and clamp with sufficient vertical reach. PTFE components resist most common reagents and eliminate the need for separate lubrication. Clear glass allows direct meniscus reading without additional illumination.

Highlights

  • PTFE stopcock resists chemical attack during titrations
  • 25 mL capacity handles standard volumetric procedures
  • Grade B tolerance of ±0.1 mL meets routine accuracy needs
  • 560 mm overall height fits common burette stands
  • Pack of six supplies multiple workstations at once

Specifications

BrandZORO SELECT

Questions about this item

Will the 25 mL capacity and 0.1 mL graduations on these burettes match the glassware I already use for titrations?

Each burette holds 25 mL with 0.1 mL graduation increments and a +/-0.1 mL tolerance, matching standard Class B volumetric work.

How can I verify the PTFE stopcock is sealing correctly after I assemble the six burettes?

Close the PTFE stopcock, fill to the 25 mL mark, and watch the meniscus; it should hold without drift at the 0.1 mL graduation lines.

Does the pack of six include the PTFE closures or do I need to order them separately?

The PK6 pack includes PTFE closures and PTFE stopcocks already fitted to each 560 mm straight-bore glass burette.

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