Test Tube Brush
Product Code : EL-TT-10130
Quick answer: This is a nylon-bristled cleaning brush sized and shaped to reach inside test tubes and other narrow-mouth laboratory glassware — graduated cylinders, burettes and Erlenmeyer flasks among them — for routine washing between uses in a classroom or laboratory setting.
Why Nylon Bristles for Narrow-Mouth Glassware
Nylon bristles are firm enough to dislodge residue and film from the inside wall of a test tube or narrow-necked flask without scratching the glass the way a metal-bristled brush could, which matters because scratches on the inside of volumetric or graduated glassware can affect readings over time and create weak points prone to cracking. The narrow, elongated brush head is shaped specifically to reach the full depth of a standard test tube or the narrow bore of a burette or graduated cylinder, where a wider general-purpose brush cannot reach. Routine mechanical brushing like this remains a practical first step in glassware cleaning before any chemical soak or rinse, especially in teaching labs processing a high volume of tubes between classes.
Frequently Asked Questions
What glassware can this brush be used on besides test tubes?
Its narrow profile also suits other narrow-mouth laboratory glassware such as graduated cylinders, burettes and Erlenmeyer flasks, anywhere a standard bottle brush is too wide to reach the full depth of the vessel.
Why nylon bristles rather than a different material?
Nylon is firm enough to remove residue and film effectively while being gentle enough not to scratch the glass, which helps protect graduated markings and reduces the risk of creating weak points that could lead to cracking over repeated use.
Is this brush suitable for daily classroom use?
Yes, it is designed for routine, repeated cleaning in classroom and laboratory settings where multiple tubes need to be washed between uses or classes.
Related Products
Explore other Test Tube accessories: Test Tube Stand and Flat Bottom Test Tube, or see the full Test Tube range.
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Last updated: September 2026.