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.

Spotlight on Safety: Trends in Eye/Face Wash and Showers

Posted By: Cole-Parmer Blog Team June 2, 2011

With a nod to National Safety Month, Cole-Parmer spotlights the latest innovations in eye/face wash products and showers for better safety solutions.

According to Nate Kogler, Division Product Manager for the Bradley Corporation, the new technologies provide enhanced washdown coverage and improved cleanliness. For an eye-opening article describing this next generation of products, read more.

1 Comment on "Spotlight on Safety: Trends in Eye/Face Wash and Showers"

tmj no more pdf | January 30, 2013 at 2:57 pm | Reply

Admiring the persistence you put into your blog and in depth
information you present. It’s great to come across a blog every once in a while that isn’t the same old rehashed material.

Great read! I’ve bookmarked your site and I’m including your RSS feeds to my
Google account.

1 Comment on "Spotlight on Safety: Trends in Eye/Face Wash and Showers"

Leave a comment Cancel reply