psychrometric chart

[Fred Sturm]

Thanks, John. This one gives 20% for 70F dry and 50F wet, nearly the
same as the chart Don referred me to. The Aussies' calculator says it's
11%. My slide rule says 17%. Anybody's guess, I suppose. Somewhere in
that general ballpark. So if my hygrometer is +-5%, maybe that's what
that means <g>.
Fred
John Baird wrote:
> 
> This link gives the choice of Celsius or Fahrenheit. This is a calculator,
> not a chart as you requested. Remember not to be too impressed when the
> results come back with numbers to four decimal places...when you've input
> whole numbers :)
> 
> http://www.connel.com/freeware/psychart.shtml
> 
> John Baird