What is the difference between an analytical balance and a precision balance?

An analytical balance provides readability of 0.1 mg or better, while a precision balance typically reads to 0.001 g or 0.01 g. Analytical balances include draft shields and are designed for highly sensitive measurements. Precision balances handle larger samples and are less affected by environmental conditions.

What readability do I need for my lab application?

You need a readability that is at least one-tenth of your smallest sample weight or required measurement increment. For example, measuring 100 mg samples may require 0.01 mg readability, while gram-level work may only need 0.01 g. Selecting higher readability than necessary increases cost without improving results.

Do lab balances need to be calibrated?

Yes, all lab balances require regular calibration to maintain accuracy. Calibration ensures measurements remain traceable to certified standards. Internal calibration simplifies this process by automating adjustments, while external calibration requires manual verification with certified weights. In regulated environments, calibration records must be documented and retained.

What is the difference between readability and repeatability?

Readability is the smallest increment of weight a balance will display. Repeatability is the degree of agreement between multiple measurements of the same mass, on the same balance, under the same conditions.

What is the best way to clean my balance to ensure accurate readings?

Inspect and clean before each use. A flannel cloth or soft brush works well for dusting and light cleaning. Use a non-abrasive cleaner for light spills, and a dry flannel cloth for glass parts. Set a regular maintenance schedule for deep cleaning to ensure optimal performance and instrument longevity.

Can vibration affect the accuracy of my balance?

Yes — even slight vibration from a heavy footstep can affect accuracy. Place the balance on a sturdy benchtop away from high-traffic areas such as hallways, elevators, stairways, and doors. If that placement is not possible, an anti-vibration table should be considered.

Save Time with Multiposition Stirring Hot Plates

Whenever you can capture lost time it makes your job more efficient. That’s why Multiposition Stirring Hot Plates are worthwhile for your lab. You can stir or heat multiple samples at the same time—no need to wait until one is finished to start the next one.

Because each stirring position is individually controlled, you also can perform different mixing applications at the same time. These hot plates can heat only, stir only, or heat and stir at the same time to maximize versatility.

From a safety angle, the controls are designed so that you don’t have to touch the hot plate to make adjustments.

Some multiposition units are programmable to work unattended while you are busy elsewhere in the lab. They allow you to set the temperature, stirring speed, time, and heating ramp rate.

Similar to the multiposition stirring hot plate is the multiposition extraction heater/stirrers which allow liquids with different boiling points to be heated or stirred next to each other.

View our selection of stirring hot plates. For questions about which is best for you, contact our Technical Support Experts.

Save Time with Multiposition Stirring Hot Plates

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