Burette, Class-B, with Glass Key Manufacturer,Supplier and Exporter in India

The Burette, Class-B, with Glass Key (Product Code: SLE/GBu/03) is a heavy-duty borosilicate glass burette fitted with a glass stopcock key and marked with blue graduations, intended for routine titrations in teaching and general-purpose chemical laboratories. It is produced in 10, 25, 50 and 100 ml capacities by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, and is a practical choice when stocking chemistry lab equipment for schools in India where Class B accuracy meets the requirement.

Specifications

Typical Use

Secondary-school and undergraduate practicals — standardising an acid, finding the concentration of an alkali or estimating iron with permanganate — are well served by a Class B burette, whose tolerance is wider than Class A but entirely adequate for teaching. The 25 ml and 50 ml sizes are the usual choices for student benches, the 10 ml size suits small titres, and the 100 ml size is useful where a large volume of titrant is delivered. When equipping a school laboratory setup in India, many institutions use Class B burettes for student practicals and keep Class A burettes for staff and project work.

A glass key needs a thin film of stopcock grease to turn smoothly and seal; apply it sparingly to the key, away from the bore hole, so grease does not block the tip. Do not leave alkaline solutions standing in the burette, as they can cause a glass key to seize; drain and rinse promptly after use. For storage, remove the key or slip a strip of paper between key and barrel so that the two cannot stick together.

Manufacturer

Jain Scientific Equipments Private Limited, known to customers as ScienceLab, manufactures this burette in Ambala, Haryana. The company provides chemistry glassware and teaching apparatus to schools, colleges and laboratories throughout India and international markets. Company details are on the profile page.

Related Glassware Burettes

Alternatives and accessories for titration work with this burette:

• Burette, Class-B, with PTFE Key Stopcock — the same class with a grease-free PTFE key.
• Burettes — Class A burettes with PTFE key for work that needs a tighter tolerance.
• Burette Stand, Hard Wood, Double — a double stand for two burettes side by side.
• Conical Flask, Pyrex — a titration vessel to swirl beneath the burette tip.
• Burette Brush — for cleaning the bore between practicals.

Compare all models in our Glassware Burettes category.

Frequently Asked Questions

Which capacities can I order?
10 ml, 25 ml, 50 ml and 100 ml.

What is the difference between Class B and Class A?
Class B burettes have a wider permitted tolerance than Class A. They suit teaching and routine work; for precise analysis, choose a Class A burette.

Does the glass key need grease?
Yes, a thin film of stopcock grease keeps it turning smoothly and prevents leaks. If you prefer a grease-free stopcock, see the Class B burette with PTFE key.

Can I use it for sodium hydroxide titrations?
Yes, but drain and rinse the burette promptly afterwards; alkali left in contact with a glass key can make it stick.

Can I order a replacement key?
Glass keys are normally matched to their own barrel, so please contact us with the size before ordering a spare.

Is a calibration certificate offered?
If your institution needs calibration documentation, raise it with us during the enquiry so we can advise what can be arranged.

How do I request a quotation for a class set?
Give the quantity in each capacity, any stands or flasks needed and the delivery location. We supply institutions in India and international markets.

Request a Quote

For a quotation on the Burette, Class-B, with Glass Key, use our contact page or add it to the enquiry cart with the rest of your titration list.

Last updated: 24 September 2026