The US Naval Safety Center has an amusing story and photos to help explain why communication for safety sake needs to be clear.

They also have a page that shows the danger of gasoline. Biodiesel does not have the same issue, as it’s not classified as an explosive (no diamond necessary), but it’s still a fuel source and needs to be handled with care.

I found an obscure news story about a man who was recently killed in Idaho while welding a biodiesel tank. And then there was a biodiesel plant fire recently in California. While a lighter or even butane torch might not light up biodiesel, welding a tank full of oil or biodiesel seems like a really bad idea. Safety first.