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Clear glass burette with PTFE stopcock, 25ml capacity, 560mm tall, pack of six

Value Brand

Value Brand Burette PTFE 25ml Grade A PK6 measurement

SKU CH-N63W-S56WJ

Six straight-bore burettes with PTFE stopcocks, each holding 25 ml with 0.1 ml graduations and ±0.05 ml tolerance

  • Product typeAssortments & Kits
  • Grade A glass delivers ±0.05 mL accuracy
  • PTFE stopcock resists chemical attack
  • 1 mL graduations allow fine volume control
  • 25 mL capacity suits standard titrations
  • Pack of six supports high-throughput labs

PTFE Burette 25 ml Grade A Pack of 6

This set contains six straight-bore burettes each with a 25 ml capacity and Class A tolerance of ±0.05 ml. The glass barrels feature 0.1 ml graduation increments and PTFE stopcocks with PTFE closures. They are intended for analytical laboratories that require high-accuracy volumetric titration.

Installation and common issues

Each burette arrives assembled with its PTFE stopcock and closure fitted, so no component assembly is needed. Before first use rinse the barrel and stopcock with the intended titrant to remove dust and residues. The most frequent problem is a leaking stopcock caused by overtightening or particulate matter on the PTFE plug seating surface.

Compatibility checks before ordering

Verify that your existing burette clamps and stands can accommodate the 560 mm overall height of these units. Confirm that the 0.1 ml graduation resolution meets the precision demanded by your standard operating procedures. Ensure that PTFE wetted parts are chemically compatible with the reagents you plan to dispense.

How it compares

Measured against everything we stock in Test Equipment & Meters, at today’s prices. Recalculated every night.

Price $126.99
Typical for this category: the median of 202 items is $148.99.

Specifications

Product
Brand nameLAB SAFETY SUPPLY
Product typeAssortments & Kits

Questions about this item

How can I verify the burette is calibrated correctly after setup?

Check that the meniscus reads zero at the bottom of the scale and that the 0.1 mL graduation lines align with the 25 mL capacity mark within the stated ±0.05 mL tolerance.

What components are included in the pack of six and what must be purchased separately?

The pack contains six straight-bore glass burettes with PTFE stopcocks and closures; stands, clamps and titration flasks are not included.

Which capacity should I choose for routine 25 mL titrations?

The 25 mL model with 0.1 mL graduations and Class A tolerance is the correct choice for standard 25 mL titration work.

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