EISCO Burette 50ml Class A - Precise 0.05ml Accuracy

In this review the EISCO 50ml burette is assessed for laboratory and classroom use; its biggest selling point is consistent, calibrated delivery combined with robust borosilicate construction. The reviewer found it well suited to titrations and routine volumetric work because of the Class A accuracy and clear 0.1ml blue graduations, making it easy to read volumes and reproduce results. It is a straightforward, industrial-quality glass burette that balances precision and durability for users who need reliable, repeatable liquid measurement.

Key Features

• Borosilicate 3.3 glass: Heavy duty construction resists chemical attack and thermal shock so the burette holds up in frequent lab use.
• Straight bore design: Provides smooth, predictable liquid flow for more accurate titrations and easier endpoint detection.
• PTFE stopcock: Chemically inert valve action reduces sticking and contamination risk for a wider range of reagents.
• Class A 0.05ml accuracy: Meets DIN ISO 385 precision expectations, which supports reliable quantitative work.
• Calibrated 0.1ml graduations: Blue markings are clear and evenly spaced, aiding quick reading and reproducible results.
• Autoclavable durability: Designed to withstand sterilization and temperature changes for long service life.

Who It's For

The burette is aimed at professional laboratories and educational settings that need dependable volumetric equipment; chemistry teachers and lab technicians will appreciate the calibrated to deliver accuracy and robust glass construction for repeated titrations. Its combination of Class A precision and durable materials makes it a good choice where reproducibility matters.

It is less suited to situations requiring non-glassware or disposable instruments, or where digital dispensing with automation is needed; users who must avoid glass entirely for safety reasons should look elsewhere.

Pros & Cons

Pros

• Excellent build quality from borosilicate 3.3 glass that resists thermal shock and chemical wear.
• High precision with Class A 0.05ml accuracy suitable for quantitative lab work.
• PTFE stopcock offers smooth, low-maintenance control and chemical compatibility.
• Clear 0.1ml blue graduations improve reading accuracy and classroom visibility.

Cons

• As a glass burette it requires careful handling; breakage risk makes it less ideal for rough environments.
• Manual operation is not suited to automated workflows that require electronic dispensing.

Specifications

Capacity	50ml
Glass type	Borosilicate 3.3
Accuracy	Class A, 0.05ml (DIN ISO 385)
Graduations	0.1ml blue graduations
Stopcock	Straight bore PTFE stopcock
Durability	Autoclavable; low temperature gradient, thermal shock resistant

Our Verdict

The EISCO 50ml Class A burette is a strong value for labs and classrooms needing reliable volumetric delivery and long-lasting glassware. Its combination of Class A accuracy, PTFE stopcock and durable borosilicate construction makes it a practical, cost-effective choice for routine titrations and instructional use.

Frequently Asked Questions

Is this burette suitable for titrations?
Yes, the Class A 0.05ml accuracy and clear 0.1ml graduations make it well suited to titration work in labs and classrooms.

Can it be sterilized?
Yes, the burette is autoclavable and designed to withstand high temperatures and thermal shocks.

Is the stopcock chemically resistant?
Yes, the PTFE stopcock is chemically inert and reduces the risk of reaction or corrosion with common reagents.