Thanks, I have managed to find the link.
If Don is out here somewhere perhaps he could let me know thw currency of that spreadsheet.
I see it was written in 2001?
Thanks
I have been looking for a spreadsheet to calculate flammable gas mixtures and came across reference to a sheet by Don Coffman (thread770-77231 ). I can't seem to find anything more than a pdf describing the sheet on Cheresources. I understand Don is subscriber to eng-tips. Can anyone help me...