RE: OILPHANT: why would you care really? Oilphant has NEVER been right about anything. go back and look at his last 50-100 posts. Not one is accurate. I think he posts just to joke around now. just my opinion. there cannot be any other reason.
google it. It's an oil density standard. Too much info to post here. Not sure about the BHP part but it is probably contained in the reference material.