Content by Bruce McDuffee

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Bruce McDuffee
Quality of compressed air is a broad term. One person may deem his compressed air quality as “poor” if he finds water at the end-use point. Another may tell you that her compressed air is high...
Bruce McDuffee's picture
Bruce McDuffee
Humidity is a tough measurement. It’s very hard to get a repeatable measurement with low uncertainty. This post discusses seven best practices that will help you make a more accurate, repeatable, and...
Bruce McDuffee's picture
Bruce McDuffee
Ask any metrologist, and you’ll likely get quite a diatribe about the challenge of making a good measurement of humidity. There are, however, some specific steps or best practices you can follow...
Bruce McDuffee's picture
Bruce McDuffee
“Please tell me how to map this chamber!” This is a plea we hear at every Vaisala current Good Manufacturing Practice (cGMP) seminar. The question deals with environmentally controlled chambers,...
Bruce McDuffee's picture
Bruce McDuffee
If you’re in the business of manufacturing drugs, medical devices, nutraceuticals, or manufacturing or importing any product in the United States that falls under current Good Manufacturing...