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.

Lab Innovations 2017: Meet Us At The Show from Cole-Parmer

Lab Innovations is coming to Birmingham, United Kingdom, November 1 to 2, 2017, and we will be exhibiting our latest products. We invite you to join us in booth F6 to talk with our technical experts about your application. Don’t miss this only event in the UK dedicated to lab professionals. It’s the one place where you will have the opportunity to take a look at the latest innovations to help you gain more productivity and efficiency in your laboratory.

Featured Product: Genova Bio Spectrophotometer

When you stop by our booth, ask about the Genova Bio, a simple, low cost, easy to use UV/visible spectrophotometer dedicated for life science applications. The fast, responsive color touchscreen and pre-programmed methods for the measurement of nucleic acid concentration and purity, protein assays and cell density, makes this spectrophotometer the ideal addition to any laboratory.

Lab Innovations

National Exhibition Centre
Birmingham, United Kingdom
November 01 to 02, 2017
Cole-Parmer Booth F6

Lab Innovations 2017: Meet With Us At The Show in Booth F6

Featured Product: Genova Bio Spectrophotometer

Lab Innovations

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