Burettes
Burettes
Used to dispense and measure a variable amount of a chemical solution in analytical chemistry at the same time, burettes feature a long, graduated glass tube with a stopcock on its lower end for liquid measurement. The stopcock valve is used to control the flow of liquid from the burette in either a steady stream or drop-by-drop. Unlike a pipette, the sample quantity delivered by a burette is changeable. For gas measuring burettes, the stopcock is located at the top of the burette’s glass tube. Digital burettes that deliver exactly measured samples, increasing accuracy and precision, are also available.
Titrations are performed to determine the concentration of a specific substance by adding another substance that interacts with the first to neutralize it or to form another compound. Liquid is slowly dispensed from a burette into a flask or beaker that holds a known amount of the test substance. The burette has a solid glass or PTFE stopcock or other fitting to regulate the flow of the liquid.
The “unknown” substance is mixed constantly (via magnetic stirrer/stir bar or similar method) to ensure that the reaction is complete. Often, the end-point of the reaction is a specific change in the acidity or pH of the liquid; a chemical indicator may be used to produce a color change when the reaction is complete.
Burettes may be designed for single or multiple uses; replacement stopcocks, glassware, and other parts are available for most reusable versions.
Other burette features include:
- Material: Glass or plastic
- Size: Usually from 10 mL to 50 mL capacities
- Graduations: Choice of precision (0.01 or 0.1 mL)
- Certification: Class A or Class B, serialized and non-serialized
- Construction: Single-use or with replacement parts
- Types: Standard or self-filling/automatic
- Burets with PTFE-plug stopcocks
- Break-resistant, self-zeroing automatic burets
- Reservoir fill burets
Borosilicate Glass Class B Burette with Stopcock
Manufactured from borosilicate glass and omplies with BS-ISO 385 standards. Fisherbrand™ Borosilicate Glass Class B Burette with Stopcock includes single bore, interchangeable glass or PTFE stopcock with 0.10mL blue ceramic graduations.

Fisherbrand™ Stopcock Replacement Tip
For use with Straight Through Buret Stopcock. Fisherbrand™ Stopcock Replacement Tips are available in glass or polypropylene.
Thermo Scientific™ Nalgene™ Acrylic Burets with PMP Tip, TFE Stopcock and Plug
Accurately perform applications with these acrylic burets with PMP tip, TFE stopcock and plug, which meet ASTM E287 standards.
Fisherbrand™ Borosilicate Glass Class A Burette with Teflon Tap
Complies with BS-IS 385 standards. Fisherbrand™ Borosilicate Glass Class A Burette with Teflon Tap includes single bore with interchangeable PTFE stopcock. Blue ceramic graduations make volume assessment easy.

Thermo Scientific™ Nalgene™ Break-Resistant Self-Zeroing Automatic Burets
Ensure repeatable, accurate results with these break-resistant, self-zeroing, automatic burets which meet ASTM E287.
BRAND™ BLAUBRAND™ Borosilicate Glass Compact Burettes
Fast to dismantle and easy to clean. BRAND™ Blaubrand™ Borosilicate Glass Compact Burettes are also simple to repair because all individual components replaceable.
BRAND™ BLAUBRAND™ Automatic Burette
BLAUBRAND™ Automatic Burette with i-stopcock, lateral stopcock, and PTFE stopcock.
BRAND™ SILBERBRAND Compact Automatic Burette
Compact Automatic Burette designed to be fast to dismantle and easy to clean.
BRAND™ Spare Burette Tip
For compact and automatic burettes
BRAND™ BLAUBRAND™ Burette with Blue Schellbach Stripe
BLAUBRAND™ Burette feautures a straight stopcock and a blue Schellbach stripe.
BRAND™ SILBERBRAND Automatic Burette with PTFE Stockcock
SILBERBRAND Automatic Burette equipped with an i-stopcock and lateral stopcock.
BRAND™ Titrette™ Digital Bottle-Top Burets

Provides accuracy and precision within the tolerances of Class A glass burettes. Titrette™ Digital Bottle-top Burets are suitable for most titrants in concentrations up to 1 mol/L. Ideal for general chemistry, wastewater treatment applications, food/beverage analysis, industrial titrations, environmental fieldwork, and more.
BRAND™ BLAUBRAND™ Bang Pattern Micro Burette
With interchangeable straight needle-valve stopcock with PTFE spindle (PTFE key in the intermediate stopcock)
BRAND™ SilberBrand™ Boro 3.3 Compact-Burette Tube
Economy class B burette with removable PTFE stopcock and PP tip
BRAND™ Spare Burette Tip
Spare Burette Tip for use with compact burettes, automatic burettes, and titrators.
BRAND™ SILBERBRAND™ Amber Borosilicate Glass Automatic Burette
Includes intermediate stopcock with PTFE key. BRAND™ SILBERBRAND™ Amber Glass Automatic Burette is calibrated to deliver.
BRAND™ BLAUBRAND™ Compact Automatic Burette with Plastic Bottle
Fast to dismantle and easy to clean. All individual components are replaceable.
BRAND™ SILBERBRAND Automatic Burette with Lateral Safety Stopcock
SILBERBRAND Automatic Burette includes a lateral safety stopcock and black Schellbach stripe.