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.

Going GREEN: Cole-Parmer Reduces its Carbon Footprint

Posted By: Cole-Parmer Blog Team March 17, 2011

Cole-Parmer affirms its commitment to conducting business in an environmentally and socially responsible manner.

We’ve taken steps to upgrade our warehouse with eco-friendly materials to reduce waste and conserve energy. These include using eco-friendly shipping materials and eco-friendly packaging, along with recycling and reducing our energy consumption.

And, we continue to grow even greener. Recently, Cole-Parmer released its 2011/12 General Catalog, produced from Forest Stewardship Council (FSC) certified paper. FSC is an independent, non-governmental, not-for-profit organization established to promote the responsible management of the world’s forests.

We invite our customers to join us “in the green” by recycling and reusing packing materials, including cardboard, paper tape, packing peanuts, and bubble wrap, received in shipments.

2 Comments on "Going GREEN: Cole-Parmer Reduces its Carbon Footprint"

Mashiur | November 25, 2011 at 12:48 am | Reply

Environmentalism is a broad philosophy, ideology and social movement regarding concerns for environmental conservationand improvement of the health of the environment, particularly as the measure for this health seeks to incorporate the concerns of non-human elements

going green
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- bdumey | November 28, 2011 at 9:26 am | Reply
  
  Thanks for your comments.

2 Comments on "Going GREEN: Cole-Parmer Reduces its Carbon Footprint"

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