Burette Class-B with PTFE Key Stopcock
Product Code : LSK-GB-10413
Burette Class-B with PTFE Key Stopcock (SKU LSK-GB-10413) is a general-purpose titration burette whose scale is printed in amber enamel and whose flow is controlled by a PTFE key stopcock. It is meant for school and institutional laboratories where Class B accuracy is enough for teaching and routine titrations. Science Lab Supplies sells it from Ambala, India to schools, colleges, training institutes, tender contractors and distributors.
Specifications
Two features define this burette: the amber enamel graduations, which stand out clearly against colourless solutions, and the PTFE key in the stopcock, which turns without grease. Class B is the general-purpose tolerance class. Capacity and body material are not given in the listing and are confirmed on the quotation.
| Parameter | Value |
|---|---|
| SKU | LSK-GB-10413 |
| Tolerance class | Class B |
| Stopcock | PTFE key |
| Graduations | Printed in amber colour enamel |
| Intended users | Schools and institutional laboratories |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Class B Burette
This Class B burette is a practical choice for student titrations, where many burettes are used every day and the tightest tolerance is not needed. The grease-free PTFE key avoids the sticking and contamination that greased glass stopcocks can suffer, which reduces maintenance in busy school labs.
- CBSE/NCERT Class 11 chemistry: standardising sodium hydroxide with oxalic acid.
- Class 12 chemistry: permanganate titrations with oxalic acid and Mohr's salt.
- B.Sc. first-year chemistry: introductory volumetric analysis.
- Diploma, ITI laboratory assistant and technician courses: titration practice.
Standard Scope of Supply
The Burette Class-B with PTFE Key Stopcock is supplied as a single unit as described above, with its PTFE key stopcock fitted; any optional accessories and your required capacity are listed on the quotation. Stands, clamps and flasks can be added to the same enquiry as separate lines.
Packing, MOQ and Lead Time
Schools usually buy burettes by the class set, but a quotation can cover anything from one piece upward. It gives packing, delivery time and price for your quantity, and you can ask for the Class B burette price in India alongside clamps and conical flasks for the same benches.
Through its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Saudi Arabia, Oman, the Philippines, Nepal, Bangladesh and Zambia. Send the capacity and quantity on the contact page, use the enquiry cart, or check the lab tender page if you are purchasing by tender.
Frequently Asked Questions
What does Class B mean?
Class B is the general-purpose tolerance class for volumetric glassware. It allows a wider tolerance than Class A and is widely used for student titrations and routine work.
Why choose a PTFE key over a glass stopcock?
A PTFE key turns without grease, so it does not stick, seize or leave grease in the titrant. That makes it easier for students to handle and simpler to maintain.
What capacity is offered?
The listing does not state a capacity. Name the volume you need on the contact page and it will be confirmed on the quotation.
Who supplies the Burette Class-B with PTFE Key Stopcock?
Science Lab Supplies supplies it from Ambala in Haryana, India, and sends quotations directly to schools, colleges, institutes and distributors.
Related Class B Burettes and Accessories
Class B burettes are offered with different stopcocks, and every burette needs a clamp and a receiving flask. These four items from the Glassware Burette and Lab Glassware ranges let you compare stopcock types and equip each titration place on one quotation.
- Burette Class B With Glass Stopcock — the same class with a glass stopcock.
- Burettes Class B — Class B burettes with a PTFE needle valve stopcock.
- Burette Clamp Aluminium — holds the burette upright on a stand.
- Borosilicate Conical Flask — receiving flask for titrations.
Browse the full Glassware Burette range or all school lab equipment.
Last updated: 25 September 2026
