Re: vacuum pump

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: vacuum pump
From: Tesla List <tesla-at-stic-dot-net>
Date: Sun, 13 Jul 1997 22:11:18 -0500
Approved: tesla-at-stic-dot-net


From: 	Kristian Ukkonen[SMTP:kukkonen-at-cc.hut.fi]
Sent: 	Sunday, July 13, 1997 8:06 PM
To: 	Tesla List
Subject: 	Re: vacuum pump


> From: Richard Wayne Wall[SMTP:rwall-at-ix-dot-netcom-dot-com]
> > Kristian Ukkonen wrote: 
> >1 Torr = 1 mmHg
> >760 Torr = 1 Atm
> >1 micron = 1 mTorr = 1 micron of Hg = 1/1000 mmHg
> The last line is incorrect.
> MilliTorr = 1/1000 mmHg
> Micron = 1/1,000,000 mmHg
> RWW

No. Direct quote from Steve Hansen's "An experimenters introduction
to vacuum technology", an excellent booklet on basics of vacuum:

"A thousandth of 1 mm Hg is referred to as 1 micron Hg or,
in more correct terminology, 1 milliTorr (mTorr)."

This is becoming a meta-discussion : a correction to a correction..

'Coiling,

  Kristian Ukkonen.

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| Kristian Ukkonen       |  Do as thou wilt shall be the whole of the law |
| kukkonen-at-alpha.hut.fi  |_____  Chance favours the prepared mind  |-------
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