Burettes Class B
Product Code : LSK-GB-10414
Burettes Class B (SKU LSK-GB-10414) are borosilicate glass burettes with an amber printed scale and a PTFE needle valve stopcock that lets the titrant be released in a fine, steady stream or single drops. They suit school, college and training laboratories that need general-purpose burettes for daily titrations. A quotation for them can be requested from Science Lab Supplies, Ambala, India, by schools, colleges, institutes, tender contractors and distributors.
Specifications
For these needle-valve burettes, the table lists each fact on its own row. In short, the tube is borosilicate glass with graduations printed in amber, and flow is set by a PTFE needle valve rather than a plug, so small turns give fine control near the end point; capacity is confirmed on the quotation.
| Specification | Value |
|---|---|
| SKU | LSK-GB-10414 |
| Tolerance class | Class B |
| Material | Borosilicate glass |
| Stopcock | PTFE needle valve |
| Graduation printing | Amber colour |
| Capacity | Confirmed on the quotation |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Class B Burettes
With a needle valve, the flow can be slowed to a drop at a time without the jerky start a plug stopcock sometimes gives. That suits learners doing their first end-point titrations into a Borosilicate Conical Flask, and technicians running many routine titrations a day.
- CBSE/NCERT Class 11–12 chemistry: acid-base and permanganate titrations in volumetric analysis.
- B.Sc. chemistry: acid-base, redox and precipitation titrations.
- D.Pharm and B.Pharm pharmaceutical analysis: titrimetric assays.
- Water and food testing: routine titrations such as hardness and acidity checks, filling through a Borosilicate Filter Funnel.
Standard Scope of Supply
Burettes Class B are supplied as single units as described above, each with its PTFE needle valve stopcock fitted; any optional accessories and the capacity you require are listed on the quotation. Clamps, stands and flasks can be requested alongside as separate lines.
Packing, MOQ and Lead Time
Order one burette as a replacement or a full class set for a new chemistry lab; either way, the quotation spells out packing, delivery time and price for that number. Other chemistry lab equipment in India from our range, such as clamps and conical flasks, can join the same quote.
Science Lab Supplies, an Importer-Exporter Code holder, can ship to buyers in Oman, the Philippines, Nepal, Bangladesh, Zambia and Rwanda. Replacement or class-set quantities can be typed into the contact page, collected in the enquiry cart, or matched to a published tender via the lab tender page.
Frequently Asked Questions
What is a needle valve stopcock?
It is a tapered PTFE valve opened by turning, so the gap widens gradually. This gives smooth, fine control of flow down to single drops, and it needs no grease to work.
Are these burettes suitable for school use?
Yes. Class B is the general-purpose tolerance class for teaching labs, and the amber scale and grease-free valve make the burettes easy for students to read and handle.
Which capacity can I order?
The burettes are quoted in the capacity you need. Tell us the volume through the contact page and the quotation will confirm it along with packing and delivery time.
Who supplies the Burettes Class B?
Item-wise quotations for these burettes are prepared by Science Lab Supplies in Ambala, Haryana, India, for schools, colleges, laboratories and distributors that contact it directly.
Related Burettes and Clamps
Class B burettes are offered with several stopcock designs, and every titration place needs a clamp. These items from the Glassware Burette, Lab Glassware and Chemistry Lab ranges show the alternatives and the clamps that hold them, so you can compare and order on one quotation.
- Burette Class-B with PTFE Key Stopcock — amber enamel scale with a PTFE key stopcock.
- Burette Class B With Glass Stopcock — borosilicate model with a glass stopcock in place of a valve.
- Borosilicate Burette with Rota Stopcock — 50 ml Class A burette with white enamel graduations and a PTFE Rota key.
- Burettes with Schellbach stripe — borosilicate burettes with a Schellbach stripe, printed in blue.
- Burette — 50 ml graduated glass tube with a bottom stopcock valve.
- Burette Clamp Aluminium — die-cast aluminium clamp fixing to retort rods up to 16 mm.
- Burette Clamp Chemistry Lab — powder-coated zinc-aluminium clamp with rubber-lined jaws.
Browse the full Glassware Burette range, the Chemistry Lab range, or all school lab equipment.
Last updated: 9 October 2026
