Quote Originally Posted by Rich View Post
I really can't get into a protracted dialogue over this I'm afraid.

I've never had anyone complain that they have been hoodwinked or duped or misled into buying the wrong bottle. Quite the reverse; many have written to say how close the predictions are to their own experiences. I know that is only their perception and that it almost certainly differs from actuality, but for many folk their perception is 90% of reality.

Writing code to fit the Van Der Waal correction when only two points on the curve have any relevance, i.e., 232 and 300 bar (as bottles aren't rated as far as I know to any intermediate values) would be a waste of time and I don't rise to such challenges any more.

ATB
Absolutely fair enough.

I made the comment in the first place because I could only imagine that you were unaware of the considerable error - at 300 Bar - caused by your oversimplification. It now seems that you were well aware of the errors but did it anyway.
Personally, I wouldn’t do that but each to his own.

Only your 300 Bar point is affected – the 232 Bar point would be near enough – as explained above.

ATB
Dave