---
product_id: 236613599
title: "Labs Borosilicate Burette, Straight Bore, PTFE Stopcock - 50mL cap., 0.10mL grad., Class A tolerance"
brand: "eisco"
price: "¥22710"
currency: JPY
in_stock: true
reviews_count: 5
category: "Eisco"
url: https://www.desertcart.jp/products/236613599-labs-borosilicate-burette-straight-bore-ptfe-stopcock-50ml-cap-0
store_origin: JP
region: Japan
---

# Interchangeable PTFE stopcock 50mL precision capacity Class A ±0.05mL accuracy Labs Borosilicate Burette, Straight Bore, PTFE Stopcock - 50mL cap., 0.10mL grad., Class A tolerance

**Brand:** eisco
**Price:** ¥22710
**Availability:** ✅ In Stock

## Summary

> 🧬 Elevate your lab game with precision that professionals trust!

## Quick Answers

- **What is this?** Labs Borosilicate Burette, Straight Bore, PTFE Stopcock - 50mL cap., 0.10mL grad., Class A tolerance by eisco
- **How much does it cost?** ¥22710 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/236613599-labs-borosilicate-burette-straight-bore-ptfe-stopcock-50ml-cap-0)

## Best For

- eisco enthusiasts

## Why This Product

- Trusted eisco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smooth Control, Zero Leaks:** Interchangeable PTFE key stopcock offers effortless flow regulation with no drips or contamination.
- • **Durability Meets Innovation:** Crafted from premium borosilicate glass 3.3 for superior chemical resistance and thermal stability.
- • **Precision at Your Fingertips:** 50mL capacity with ultra-fine 0.10mL graduations ensures lab-grade accuracy for every drop.
- • **Unmatched Accuracy Guaranteed:** Class A tolerance (+/- 0.05mL) certified to ISO 385 and DIN 12709 standards—because your experiments deserve the best.
- • **Effortless Maintenance & Reliability:** Easy to clean design backed by rave reviews for durability and safe shipping—join the community of satisfied professionals.

## Overview

The Eisco Labs Borosilicate Burette is a 50mL Class A precision instrument featuring 0.10mL graduations and a PTFE stopcock. Made from durable borosilicate glass 3.3, it meets ISO 385 and DIN 12709 standards, ensuring exceptional accuracy and chemical resistance for demanding laboratory applications.

## Description

EISCO Borosilicate Burette, Straight Bore, PTFE Stopcock - 50mL - Class A Burette These high quality borosilicate burettes are straight bore with interchangeable PTFE key stopcocks. Accuracy is per ISO 385, DIN 12709.

Review: Great Burette, Good Quality
Review: Bureta de buena calidad - Muy bien

## Features

- High quality, borosilicate burette with PTFE stopcock
- 50mL capacity with 0.10mL graduations
- Class A tolerance (+/- 0.05mL)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00B5F4XO8 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 206,646 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 11 in Lab Burettes |
| Customer Reviews | 4.3 4.3 out of 5 stars (110) |
| Date First Available | 24 Jan. 2013 |
| Item Package Quantity | 1 |
| Item Weight | 272 g |
| Item model number | CH0240C |
| Manufacturer | Eisco |
| Material | Borosilicate Glass 3.3 |
| Part number | CH0240C |
| Product Dimensions | 76.2 x 10.16 x 10.16 cm; 272 g |
| Specification met | ISO |

## Images

![Labs Borosilicate Burette, Straight Bore, PTFE Stopcock - 50mL cap., 0.10mL grad., Class A tolerance - Image 1](https://m.media-amazon.com/images/I/71BRw+awCBL.jpg)

## Questions & Answers

**Q: Is it autoclavable for sterilization?**
A: Yes, the product is autoclavable.

**Q: Does glass key stopcock allow precise flow control?**
A: Yes, the stopcock allows for precise flow control.

**Q: Are graduations easy to read?**
A: Yes, the graduations are clear and easy to read.

**Q: Does stopcock leak or allow bubbles?**
A: Yes, the stopcock minimizes leaks and bubbles.

**Q: Is calibration certificate included upon purchase?**
A: Yes, calibration certificate is included.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Burette, Good Quality
*by J***J on 17 November 2025*



### ⭐⭐⭐⭐⭐ Bureta de buena calidad
*by E***A on 25 December 2023*

Muy bien

### ⭐⭐⭐⭐⭐ Great quality glassware
*by C***L on 29 November 2021*



## Frequently Bought Together

- EISCO Burette, 50ml - Class A, ±0.05ml Accuracy - Borosilicate Glass - Straight Bore PTFE Stopcock - 0.1ml Blue Graduations
- 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 Double Sided Butterfly Style Burette/Tube Clamp - High Strength Alloy - Spring Loaded Jaws - 7/8" Width Capacity, Holds Burettes up to 100mL - Fits Max 16mm Dia. Rods

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**Shop now:** [https://www.desertcart.jp/products/236613599-labs-borosilicate-burette-straight-bore-ptfe-stopcock-50ml-cap-0](https://www.desertcart.jp/products/236613599-labs-borosilicate-burette-straight-bore-ptfe-stopcock-50ml-cap-0)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-17*