This warning is posted to provide very needed cautions in using the right cleaners to clean metals pryor to heating or welding on them.
This guy very nearly died as a result of not paying attention and he was a "seasoned welder" at that.
It was simply too easy to have happened to anyone.
Go and read up on the dangers of the wrong cleaners used and the resulting Phosphene gas...very deadly in very small quantities

Here's the link!

http://www.brewracingframes.com/id75.htm