How do we select condition monitoring tests?Parts 3 and 4 of this series introduced the issue of test method selection. Starting with Part 7, I’ll spend the next few posts drilling down into different testing options when you want to evaluate fuel system microbiological contamination.
Today let’s start with two questions. These are the two questions that should drive most predictive maintenance test…
Twenty years ago I had a series of retail fuel system articles published in National Petroleum News. Ten years ago, I wrote a Looking Back preface for each of the original articles, and sent the updates to a selected distribution list. Quite a bit has changed since I wrote the original series and the 10-year updates. I’ve just launched a new series for publication in Fuel Marketing Reporter. This series will follow a series of themes similar to those I’m addressing in my Why is…
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Fig 1. Sample perishability: Changes in population as sample agesFig 2. Microbial population succession in Milk. Source: CAERT
Today, I’m returning to the sampling issue that I introduced in Part 2. In particular, I’ll focus on the concept of sample perishability – the tendency for the contents or…
READ MOREI introduced predictive maintenance (PdM) in my last post. Because I didn’t mention preventive maintenance (PM) in that post, I used “PM” as an abbreviation for PdM. After reading Part 4, one of my readers asked me to explain the difference between PM and PdM. I’ll oblige that reader in this post.
The very first collateral duty I was assigned when I reported aboard my first ship, as a fresh-caught Ensign, in January 1971, was to implement the Navy’s new Material Maintenance…
Are we like the drunk who looks for his keys under the lamppost (if you don’t now this shaggy dog story, he had dropped them in the nearby dark ally, but chose to look where there was more light…)?
In my last What’s New post I quoted Daniel Kahneman: “What you see is all there is (WYSIATI).” In this post I’ll explore the concept a bit further. First, I will review some of the essential concepts I’ve covered in my three most recent, previous posts. Apropos of…
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