What Is a Burette? Uses, Types, and How to Choose the Right Burette for Your Lab

Precision matters in any laboratory where titration, volumetric analysis, or controlled reagent dosing is part of the workflow. One of the most important tools for this kind of work is the burette. While it may look simple, the right burette can make a real difference to accuracy, repeatability, and ease of use in analytical procedures.

A burette is a long, graduated tube fitted with a stopcock at the bottom that allows liquid to be dispensed in a highly controlled way. It is most commonly used in titration, where a reagent of known concentration is added gradually to a sample until the reaction reaches an endpoint. Because the liquid can be delivered very precisely and the volume read directly from the scale, burettes remain a standard choice in chemistry, quality control, education, environmental testing, and pharmaceutical laboratories.

For buyers comparing options, the most important questions are usually not just what a burette is, but which type is suitable, what capacity is needed, what level of accuracy is required, and whether a manual burette or a more advanced titration setup makes more sense. LabFriend already has a live Laboratory Burettes category and an Advanced Laboratory Titrators category, which makes this a strong commercial topic because it supports both traditional glassware purchases and higher-value titration equipment.

What is a burette used for?

The most common use of a burette is titration. In a typical titration, the burette holds the titrant, which is added gradually to the analyte until a chemical endpoint is reached. Because the flow is controlled by a stopcock and the volume can be read from the graduations, the burette is ideal for applications where a precisely measured variable volume is required.

In practical laboratory work, burettes are commonly used for:

• acid-base titrations
• redox titrations
• water hardness testing
• chemical standardisation
• quantitative analysis in QC labs
• teaching and training in chemistry laboratories

This is one reason burettes remain relevant even as automated titration systems become more common. A good burette still offers flexibility, visual control, and relatively low cost for a wide range of analytical methods.

Main parts of a burette

A standard burette is made up of a few simple components:

• a long graduated tube
• a stopcock or valve
• a narrow delivery tip
• a top opening for filling
• volume markings for reading dispensed liquid

The stopcock is especially important because it allows the user to release liquid steadily or drop by drop. This fine control is what makes a burette more suitable than general measuring cylinders for titration work.

Types of burettes

Not all burettes are the same, and choosing the right type depends on the work being done.

Glass burettes are the traditional choice and are still very common in analytical laboratories. They are typically made from borosilicate glass and offer good chemical resistance, clear visibility, and compatibility with standard titration workflows. LabFriend currently lists products like the Bürkle Titration Burette N. Schilling 25 mL with 1000 mL Flask, which is made from Boro 3.3 glass, has blue graduations, a 0.1 mL division, and is manufactured to DIN EN ISO 385.

Class A and Class B burettes differ in tolerance. Class A burettes are made to tighter tolerances and are more suitable for high-precision analytical work, while Class B burettes are generally more suited to teaching or less demanding routine use. The Bürkle product listed on LabFriend is specified as accuracy class B, which is useful context for buyers comparing precision requirements.

Piston burettes and automated titration systems are another category entirely. These are often used where repeatability, speed, or higher sample throughput matter more than traditional manual titration handling. That is where categories like advanced laboratory titrators become relevant.

How to choose the right burette

1. Start with the application

The first question is what kind of titration or liquid dispensing task the burette will be used for. A teaching laboratory may prioritise simplicity and value, while an analytical lab may care more about tolerance, readability, and standard compliance. If the goal is occasional manual titration, a conventional glass burette may be enough. If the lab runs frequent or higher-throughput titrations, it may be worth reviewing automated options as well.

2. Check the capacity

Burettes are available in different nominal volumes, commonly 25 mL and 50 mL. The right size depends on the titration volume typically required. The Bürkle model on LabFriend is a 25 mL burette, which is suitable for many standard titration tasks and offers 0.1 mL graduations.

3. Look at graduation and tolerance

A burette’s value comes from its ability to measure dispensed volume accurately. Buyers should pay attention to:

• graduation interval
• tolerance
• accuracy class
• whether the product complies with recognised standards

For example, the Bürkle burette listing includes DIN EN ISO 385 compliance, 0.1 mL division, and ±0.075 mL tolerance, which are exactly the kinds of specifications that matter when comparing products for real analytical work.

4. Consider material and chemical compatibility

Glass remains the standard for many burettes because of visibility and chemical resistance. In some workflows, plastic alternatives or different stopcock materials may be preferred depending on reagent compatibility and breakage risk. For traditional chemistry and titration work, borosilicate glass is still a strong choice.

5. Do not ignore ease of reading and control

Features like clear graduations, a Schellbach stripe, smooth stopcock movement, and a stable setup can improve usability significantly. The Bürkle listing specifically notes a Schellbach stripe, which helps with more accurate meniscus reading. For regular titration work, small design details like this can make the process easier and more consistent.

Manual burettes vs automated titrators

One of the highest-intent parts of this topic is helping buyers decide whether they need a burette at all, or whether they have outgrown manual titration.

A manual burette is often the better choice when:

• titrations are done occasionally
• cost control matters
• visual, hands-on operation is preferred
• training or education is a key use case

An automated titrator may be better when:

• throughput is higher
• repeatability is critical
• multiple users need standardised results
• methods are more complex or highly documented

That is why it makes sense to internally link both Laboratory Burettes and Advanced Laboratory Titrators within the same article. The search intent often starts with “what is a burette” but can quickly move into product selection and workflow upgrading.

A good current example on LabFriend

A strong example from the live LabFriend range is the Bürkle Titration Burette N. Schilling 25 mL with 1000 mL Flask. According to the current product page, it features:

• 25 mL nominal burette volume
• 1000 mL flask
• Boro 3.3 construction
• 0.1 mL division
• class B accuracy
• ±0.075 mL tolerance
• DIN EN ISO 385 compliance
• Schellbach stripe

That makes it a useful product to feature in a commercially focused blog because it includes the exact specification details buyers often search for when moving from general information into purchase evaluation.

Final thoughts

A burette is a precision liquid-dispensing tool used mainly for titration and quantitative analysis. It remains a core part of many laboratory workflows because it offers accurate, controlled delivery of variable liquid volumes and supports a wide range of analytical methods.

For buyers, the smartest way to choose a burette is to start with the application, then compare capacity, graduation, tolerance, accuracy class, and material. For some labs, a standard glass burette will be exactly the right fit. For others, especially where sample throughput or standardisation matters, it may make sense to move toward an automated titration system instead.