Brush, Measuring Cylinder

Quick Answer: The Brush, Measuring Cylinder is a long cleaning brush with a cylindrical bristle head, made to reach down the full height of a measuring cylinder and scrub its walls and base. A measuring cylinder brush fits the narrow, tall shape that a beaker brush cannot enter and a test-tube brush is too short to reach.

Specifications

Tall, Narrow and Graduated

Measuring cylinders, called graduated cylinders in American usage, are tall relative to their width, and the larger sizes are too deep for a hand to reach the bottom. Residue at the base, and films on the wall between graduation marks, affect the volume measured and can contaminate the next solution. A brush with a long stem and a head roughly matching the inside diameter scrubs the whole wall in a few up-and-down strokes, and a tuft at the tip cleans the base. The length, head diameter and bristle material of this brush are not stated in the listing, and small and large cylinders need different brush sizes.

Many cylinders in teaching labs are polypropylene rather than glass, and plastic scratches easily; a scratched cylinder turns cloudy and harder to read. Use gentle pressure and let detergent soaking do most of the work. Glass cylinders, such as the 50 ml measuring cylinder, tolerate firmer brushing, but a tall cylinder can still topple when a long brush is levered inside it, so hold the cylinder while cleaning.

Applications

• Cleaning cylinders used to measure solutions for titrations and rate experiments.
• Removing sediment from cylinders used for soil settling and sedimentation tests.
• Scrubbing cylinders used for density and displacement measurements.
• Cleaning tall jars and narrow containers of similar shape.

Care & Handling

• Hold the cylinder by its body, not its rim, while brushing, and work over a sink mat to cushion any slip.
• Do not heat glass cylinders to dry them; air-dry them inverted on a rack.
• Rinse finally with distilled water and check that no droplets cling above the base.
• Rinse and dry the brush after use, and replace it when the bristles no longer touch the wall evenly.

Why Choose LabEquip

Measuring cylinder brushes are ordered with cylinder stocks by schools, colleges and water and soil testing labs. LabEquip lists this brush in the General Lab Products range; send the cylinder sizes you need to clean via the contact page.

Frequently Asked Questions

Why use a dedicated brush for measuring cylinders?

Cylinders are tall and narrow, so ordinary brushes either do not fit or do not reach the base. A long brush with a head close to the inside diameter cleans the whole wall and bottom in a few strokes.

Will the brush scratch a plastic cylinder?

Any brush can scratch soft plastic if pressed hard. Soak the cylinder in detergent first, then use light strokes. Scratches make plastic cloudy and the scale harder to read.

How do I choose the right size of brush?

The head should be close to the inside diameter of the cylinder and the stem long enough to reach the base with the handle still in your hand. Large cylinders need a larger, longer brush than small ones.

Can measuring cylinders be dried in an oven?

Glass cylinders are usually air-dried rather than oven-dried, because heating calibrated glassware is avoided as good practice and tall cylinders fall over easily. Plastic cylinders should also be air-dried unless their rating permits heat.

What removes hard-water scale from a cylinder?

Soak the cylinder in dilute acid, such as dilute hydrochloric or acetic acid, until the white deposit dissolves. Then brush, rinse well with tap water and finish with distilled water.

How often should cylinders be brushed?

Rinsing is enough after most aqueous solutions. Brush when a film, stain or deposit is visible, when water droplets cling to the wall, or after the cylinder has held suspensions or oily liquids.

Last Updated: September 2026