--- product_id: 16493643 title: "EISCO Burette, 50mL - Class B - with PTFE Stopcock - Blue Graduations - Borosilicate Glass" price: "R1979" currency: ZAR in_stock: true reviews_count: 11 url: https://www.desertcart.co.za/products/16493643-eisco-burette-50ml-class-b-with-ptfe-stopcock-blue-graduations store_origin: ZA region: South Africa --- # 50mL precision capacity Durable borosilicate glass ±0.10mL Class B accuracy EISCO Burette, 50mL - Class B - with PTFE Stopcock - Blue Graduations - Borosilicate Glass **Price:** R1979 **Availability:** ✅ In Stock ## Summary > 🧪 Elevate your precision game—because every drop counts! ## Quick Answers - **What is this?** EISCO Burette, 50mL - Class B - with PTFE Stopcock - Blue Graduations - Borosilicate Glass - **How much does it cost?** R1979 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/16493643-eisco-burette-50ml-class-b-with-ptfe-stopcock-blue-graduations) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Heavy-duty borosilicate 3.3 glass resists chemicals and breakage, made for lasting reliability. - • **Effortless Control:** PTFE stopcock guarantees drip-free, smooth flow control—no spills, no mess. - • **All-in-One Lab Essential:** Comes complete with premium quality components in a single package—ready to elevate your experiments. - • **Clear & Confident Readings:** Vibrant blue graduations enhance visibility and reduce reading errors under any lighting. - • **Precision Meets Professionalism:** Class B ±0.10mL tolerance ensures lab-grade accuracy for your critical measurements. ## Overview The EISCO 50mL Class B burette combines ±0.10mL accuracy with a durable borosilicate glass body and a chemical-resistant PTFE stopcock. Featuring clear blue graduations for easy reading, it meets DIN ISO 385 standards and is designed for reliable, drip-free titrations in professional and educational labs alike. ## Description Product description Burette for laboratory use Glass for durability Polytetrafluoroethylene (PTFE) plastic plunger stopcock for resistance to chemicals, moisture, and high temperatures 50mL capacity with 0.10mL graduation Calibrated for delivery Eisco Labs burette designed for laboratory use. Made of high quality, heavy duty, Borosilicate 3.3 glass. The PTFE plastic material of the stopcock plunger is a strong, low-friction material that has smooth transfer, high surface release, and nonstick properties. It has high chemical resistance, and resists moisture, high temperatures, flames, thermal expansion, and ultraviolet (UV) exposure. 50 mL capacity with blue 0.10mL graduation. Class B tolerance, ±0.10ml as per ISO/ASTM. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point 515°C | Annealing Point 565°C | Softening Point 820°C. Eisco Labs proudly manufactures its own products using state-of-the-art equipment. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international standards to ensure that they can withstand use in even the toughest laboratory environments. Q: Does it include calibration certificate? A: Yes, the product comes with a calibration certificate. Q: Is stopcock precision engineered for smooth operation? A: Yes, the stopcock allows for a smooth, precise flow. Q: Are graduations printed resistant to chemicals? A: Yes, the graduations resist solvents and chemicals. Review: Clone racing engine cc measurement - No issues. Worked as it should. I use this for measuring the cc displacement of our clone racing engine program. Review: Accurate and easy to use-does not leak! - This burette has nice, clear sharp graduations for accurate volume readings. The stopcock works smoothly so you can release just 0.1 mL at a time. stopcock does not leak. This is a great value for the price. I would buy it again and I highly recommend it. ## Features - 50ML || Burette with 50mL capacity - CLASS B || ± 0.10mL tolerance and 0.10mL sub. divisions - Conforms with Class B, DIN ISO 385 standards for accuracy - PTFE STOPCOCK || Includes an attached PTFE straight bore stopcock - DURABLE & STURDY || Burette is made of precisely bore high quality, heavy duty Borosilicate 3.3 glass - Built to last - PREMIUM QUALITY || Features chemical resistant blue printing - All contents are included in a single package ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 70 Reviews | ## Images ![EISCO Burette, 50mL - Class B - with PTFE Stopcock - Blue Graduations - Borosilicate Glass - Image 1](https://m.media-amazon.com/images/I/61sAhlihQFL.jpg) ![EISCO Burette, 50mL - Class B - with PTFE Stopcock - Blue Graduations - Borosilicate Glass - Image 2](https://m.media-amazon.com/images/I/61Z7eHkPIgL.jpg) ## Questions & Answers **Q: What is the inner and outer diameter?** A: Inner diameter measures 10mm, outer diameter measures 15mm. **Q: Are these 2 separate pieces or is the Stopcock built into the burette?** A: Stopcock is built into the burette **Q: What is the length of the burette; not the packaging?** A: The burette is about 31 inches (79 cm) long. The stopcock worked smoothly and it seems to be very accurate. I was very pleased with its quality. I would definitely purchase it again if I needed another one, ## Customer Reviews ### ⭐⭐⭐⭐⭐ Clone racing engine cc measurement *by E***S on April 6, 2026* No issues. Worked as it should. I use this for measuring the cc displacement of our clone racing engine program. ### ⭐⭐⭐⭐⭐ Accurate and easy to use-does not leak! *by M***Z on February 14, 2020* This burette has nice, clear sharp graduations for accurate volume readings. The stopcock works smoothly so you can release just 0.1 mL at a time. stopcock does not leak. This is a great value for the price. I would buy it again and I highly recommend it. ### ⭐⭐⭐⭐⭐ Works great. *by J***S on April 25, 2025* I bought one of these for homeschool chemistry lab, and it's worked great so far. There's no dripping when the stopcock is closed, readings are easy to make (at least once the kids worked out that numbers on burettes go from the top to the bottom!), and even my rough kids haven't managed to break it yet. ## Frequently Bought Together - EISCO Burette, 50mL - Class B - with PTFE Stopcock - Blue Graduations - Borosilicate Glass - EISCO Chemical Resistant Steel Ring Stand Set - Lab Stand Support with Clamp - 8 Inch x 5 Inch Base, 24 Inch Rod - Use as Glass Funnel Stand or Test Tube Holder - EISCO Burette/Tube Clamp, Single - High Strength Alloy - Spring Loaded Jaws - 7/8" Width Capacity, Holds Burettes up to 100mL - Fits Max 16mm Dia. Rods --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/16493643-eisco-burette-50ml-class-b-with-ptfe-stopcock-blue-graduations](https://www.desertcart.co.za/products/16493643-eisco-burette-50ml-class-b-with-ptfe-stopcock-blue-graduations) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-05-13*