Representative Image

BRAND Burette Stopcock BISTABIL, Amber Glass Boro 5.3, Straight Stopcock for 50 ml Burette with PTFE Plug

Brand:BRAND

For burettes

Stopcock

Specifications

Compare models
For burettes
50 ml
Material
Boro 3.3
Material stopcock
PTFE key
Stopcock
Straight
UNSPSC
41121500

$129.35

Inc. GST

Available soon

Product description

The BRAND Burette Stopcock BISTABIL is a high-quality, precision stopcock designed for 50 ml burettes. Made from amber borosilicate glass 5.3, this stopcock offers superior chemical resistance and durability. The straight PTFE plug stopcock ensures smooth, reliable liquid dispensing. Its interchangeable PTFE key with retention device allows for easy maintenance and long-term use, making it perfect for laboratory titration and other precise liquid dispensing applications.

Key Features:

  • Brand: BRAND
  • Material: Amber borosilicate glass 5.3 with PTFE key
  • Stopcock Type: Straight with interchangeable PTFE key
  • Compatibility: Designed for 50 ml burettes
  • Inclusion: PTFE plug for secure sealing
  • Stopcock Size: 3NS/12

This BRAND burette stopcock is an essential tool for laboratories requiring precise and accurate liquid dispensing in their analytical processes.

Compare similar models

Burette stopcock, BISTABIL, amber glass Boro 5.3, straight stopcock, for burette capacity 50 ml, with PTFE plug

Manufacturer P/N

81939

Part Number

7.018 980

Manufacturer

BRAND

For burettes

50 ml

Burette tap, BISTABIL, amber glass Boro 5.3, straight stopcock, for burette capacity 25 ml, with PTFE plug

Manufacturer P/N

81937

Part Number

7.018 979

Manufacturer

BRAND

For burettes

25 ml

Burette stopcock, BISTABIL, amber glass Boro 5.3, side cock, for burette contents 25+50 ml, with PTFE plug

Manufacturer P/N

81927

Part Number

7.018 978

Manufacturer

BRAND

For burettes

25/50 ml

Frequently asked questions

It is a high-quality, precision stopcock designed for 50 ml burettes. Made from amber borosilicate glass 5.3, this stopcock offers superior chemical resistance and durability. The straight PTFE plug stopcock ensures smooth, reliable liquid dispensing. Its interchangeable PTFE key with retention device allows for easy maintenance and long-term use, making it perfect for laboratory titration and other precise liquid dispensing applications.

Insights

Explore
Burette vs Pipette: Key Differences and Which to Use

1 min read

Burette vs Pipette: Key Differences and Which to Use

This guide explains the practical difference between a burette and a pipette, two instruments that are often confused because both dispense measured volumes of liquid, but that are built for genuinely different jobs. It breaks down how a burette's stopcock and full-length graduated scale let an operator dispense a variable, watched volume and stop the instant a reaction reaches its endpoint, versus how a pipette (volumetric, graduated or micropipette) is built to transfer one known or pre-set volume in a single action. Rather than presenting the two as competing options, the piece frames them as complementary tools tied to different steps in a procedure: burettes for titration and any reaction where the target volume isn't known in advance, pipettes for sample preparation, dilutions and any step where the volume is already fixed.

Read full story
Top 5 Brands for Graduated Cylinders in 2026

1 min read

Top 5 Brands for Graduated Cylinders in 2026

This guide compares the five graduated cylinder brands most commonly used across Australian laboratories: Hirschmann Laborgeräte (DURAN® glass), Kartell (PMP plastic), ISOLAB Laborgeräte, BRAND (BLAUBRAND®) and VITLAB. Rather than treating graduated cylinders as interchangeable, it breaks down what actually separates them, Class A versus Class B accuracy tolerances, glass versus plastic construction, base stability and certification standards such as USP conformity, and explains which of these differences genuinely matter depending on the work.

Read full story
Top 5 Brands for Erlenmeyer Flasks in 2026

1 min read

Top 5 Brands for Erlenmeyer Flasks in 2026

This guide compares the five Erlenmeyer flask brands most commonly used across Australian laboratories today: DWK Life Sciences (DURAN®), ISOLAB Laborgeräte, LLG Labware, BRAND and Kartell. Rather than treating all Erlenmeyer flasks as interchangeable, it breaks down what actually separates them in practice, wall thickness consistency, thermal shock resistance, neck and closure compatibility, and material choice between borosilicate glass and polypropylene, and explains which of these differences matter for which kind of lab work.

Read full story

$129.35

Inc. GST