Calibrate the flow rate of metering pumps. A graduated scale with zero at the top lets you easily see how much fluid is lost over the course of a one-minute test. This will tell you your pump’s flow rate. Periodic testing helps alert you to issues in your system, such as worn or dirty valves. Checking the flow rate after performing maintenance ensures your pump is working properly.

Install the column between your reservoir and pump. They require shutoff access to your reservoir and an on/off valve (not included) at the point where they connect to your system. To start the test, open the on/off valve as the system is running to fill the column with fluid up to the zero mark. Shut off the valve and wait one minute before observing the liquid level in the column. After you've taken the reading, close the on/off valve to the column and reopen access to the reservoir.

Tubes have a tapered end to fit in centrifuges.

Made of borosilicate glass, these cylinders stay clear and resist surface pitting. Use them to precisely measure and pour liquids. They withstand harsh chemicals and sudden temperature changes without cracking.

Shorter and wider than standard cylinders, these cylinders are easier to stir and reduce the risk of tipping. Their shape makes them ideal for measuring and pouring liquids in confined spaces such as fume hoods. Made of durable plastic, they resist most acids and bases. They’re also autoclavable to withstand repeated sterilization. If tipped, these cylinders won’t break. Their molded graduations are raised, so they won’t rub off like printed lines. Also known as squat graduated cylinders.

A wide mouth makes filling these cylinders mess-free. Their conical shape spaces out the graduations, so small volumes are easy to read. The graduations are raised and won’t rub off with use. These cylinders are made of durable plastic, so they won’t break when tipped. They also resist most acids and bases and are autoclavable to withstand repeated sterilization.

Get a grip on these cylinders—a built-in handle makes pouring easier and more controlled. They have a dual scale that lets you read measurements from the top down or bottom up. Made of durable plastic, they resist most acids and bases. They’re also autoclavable to withstand repeated sterilization. If tipped, these cylinders won’t break. Their molded graduations are raised, so they won’t rub off like printed lines.

Equip your workspace with multiple cylinder sizes so you’re ready for any task. These cylinders won’t break if they tip, so you can measure and pour liquids with confidence. Made of durable plastic, they resist most acids and bases. They’re also autoclavable to withstand repeated sterilization. Their molded graduations are raised, so they won’t rub off like printed lines.