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








Filtered Search Results

DWK Life Sciences Kimble™ KIMAX™ Precision Bore Burets with PTFE Stopcock
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Class A

Includes | Dust Cap |
---|---|
Stopcock | Straight |
Type | Bore Buret |
Stopcock Material | PTFE |
Class | Class A |
Scale | White |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E287,ASTM E438,ASTM E542,ASTM E694 |
For Use With (Application) | General Purpose Titrations Requiring Traceable Volumetric Accuracy |
Corning™ PYREX™ Class A Buret with Product Standard PTFE Stopcock Plug
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Buret has colored markings, fine, sharp lines and large easy-to-read numbers

Type | Buret |
---|---|
No. per Case | 1/Cs. |
Stopcock Material | PTFE |
Class | Class A |
Material | Glass |
Certifications/Compliance | ASTM E287,ASTM E542 |
Thermo Scientific™ Nalgene™ Acrylic Burets with PMP Tip, TFE Stopcock and Plug
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Accurately perform applications with these acrylic burets with PMP tip, TFE stopcock and plug, which meet ASTM E287 standards.

Type | Buret |
---|---|
No. per Case | 4 |
Class | Class B |
Material | Acrylic |
Certifications/Compliance | ASTME287 |
No. per Pack | 1 |
DWK Life Sciences Kimble™ KIMAX™ Reservoir Fill Burets
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Class A Reservoir Fill Burets

Includes | No. 2 Stopcock, Filling Tube and Overflow Tube |
---|---|
Type | Buret |
For Use With (Equipment) | 0.25 in. Outside Dameter Tubing |
Stopcock Material | PTFE |
Class | Class A |
Scale | Black |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E287,ASTM E438,ASTM E542,ASTM E694,NIST |
For Use With (Application) | General Purpose Titrations Requiring Traceable Volumetric Accuracy |
DWK Life Sciences Kimble™ KIMAX™ Burets with PTFE-Plug Stopcock
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Class B

Includes | Dust Cap |
---|---|
Stopcock | Straight |
Type | Bore Buret |
Stopcock Material | PTFE |
Scale | Black |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E287,ASTM E438,ASTM E542,ASTM E694 |
For Use With (Application) | General Purpose Volumetric Analysis and Titrations where Class B Tolerances are Appropriate |
Thermo Scientific™ Nalgene™ Break-Resistant Self-Zeroing Automatic Burets
Greener Choice
Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Ensure repeatable, accurate results with these break-resistant, self-zeroing, automatic burets which meet ASTM E287.

Type | Automatic Buret |
---|---|
No. per Case | 4 |
Material | Acrylic |
Certifications/Compliance | ASTM E287 |
No. per Pack | 1 |
Graduations | 0.1 mL |
DWK Life Sciences Kimble™ KIMAX™ Burets with Replaceable PTFE Stopcock
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Replaceable glass barrels and tips.

Includes | Dust Cap |
---|---|
Type | Educational Grade Buret |
Stopcock Material | PTFE |
Class | Class A |
Scale | Black |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E438 |
For Use With (Application) | Educational Institutions and for Many General Laboratory Procedures |
Graduations | 0.1 mL |
DWK Life Sciences Kimble™ KIMAX™ Microburets with PTFE-Plug Stopcock
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Used for small volume titrations requiring traceable volumetric accuracy

Includes | No. 2 PTFE-Plug Stopcock, White Ceramic Enamel Scale |
---|---|
Stopcock | Straight |
Plug Material | PTFE |
Stopcock Material | PTFE |
Class | Class A |
Scale | White |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E438 |
For Use With (Application) | Small Volume Titrations Requiring Traceable Volumetric Accuracy |
Corning™ PYREX™ Class A Precision Bore Buret with Glass Standard Taper Stopcock
Greener Choice
Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Class A
Includes | Dust Cover |
---|---|
Type | Buret |
No. per Case | 1/Cs. |
Stopcock Material | Glass |
Class | Class A |
Material | Glass |
Certifications/Compliance | ASTM E287,ASTM E542 |
No. per Pack | 1/Pk. |
Corning™ PYREX™ Dispensing Burets, Colored Scale, with Straight Bore Standard PTFE Stopcock
Greener Choice
Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Class B
Includes | Dust Cap |
---|---|
Stopcock | Straight |
Type | Dispensing Buret |
No. per Case | 1/Cs. |
Stopcock Material | PTFE |
Material | Glass |
No. per Pack | 1/Pk. |
For Use With (Application) | School and Institutional Laboratories Not Requiring the Accuracy of Class A Models |
DWK Life Sciences Kimble™ KIMAX™ Microburets with Integral Reservoir
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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Class A
Plug Material | PTFE |
---|---|
Class | Class A |
Material | Borosilicate Glass |
Corning™ PYREX™ Dispensing Burets with Straight Bore Product Standard PTFE Stopcock
Greener Choice
Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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For dispensing large volumes of liquids rapidly and accurately
Includes | Straight Bore Product Standard PTFE Stopcock |
---|---|
No. per Case | 1/Cs. |
Stopcock Material | PTFE |
Material | Glass |
No. per Pack | 1/Pk. |
For Use With (Application) | Dispensing Large Volumes of Liquids Rapidly and Accurately |
Closure Material | PTFE |
Corning™ PYREX™ Economy Grade Burets with Replaceable PTFE Stopcock
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Replaceable components for cost savings.
Includes | Stopcock |
---|---|
Type | Economy Buret |
Diameter (English) Outer | 0.55 in. |
No. per Case | 6/Cs. |
Stopcock Material | PTFE |
Material | Glass |
No. per Pack | 2/Pk. |
Graduations | 0.1 mL |
DWK Life Sciences Kimble™ KIMAX™ Schellbach Burets
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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With straight PTFE-plug No. 2 stopcocks and KimKap™ dust cap
Includes | Dust Cap |
---|---|
Stopcock | Straight |
Type | Schellbach Buret |
Stopcock Material | PTFE |
Class | Class B |
Scale | Black |
Material | Borosilicate Glass |
Certifications/Compliance | ASTM E287,ASTM E438 |
Graduations | 0.1 mL |
Corning™ PYREX™ Serialized/Certified Class A Burets
Greener Choice
Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Offers one or more environmental benefits itemized in the U.S. FTC Green Guides.
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Colored markings, fine, sharp lines and large easy-to-read numbers.
Includes | Dust Cover |
---|---|
Type | Serialized/Certified Class A Burette |
No. per Case | 1/Cs. |
Stopcock Material | PTFE |
Class | Class A |
Material | Glass |
Certifications/Compliance | ASTM D511,ASTM E287,ASTM E542,NIST |
No. per Pack | 1/Pk. |
Graduations | 0.1 mL |