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That may have been the site at www.industrialhygiene.com That site went inactive several months ago and is no longer available. The commercial host went out of business and the site owner did not care to reestablish it through another host. -- Peter Zavon Penfield, NY 14526 [EMAIL PROTECTED] "Keith" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > > I'm try to work out the build-up of a gas in a room given a known > source. I'm sure at some stage I save a web site that had the standard > industrial hygiene calcs on-line but I can't find it now. Is anyone > able to give me a reference please? TIA
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