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 14:15:20 -0500
• Approved: tesla-at-stic-dot-net

From: 	Richard Wayne Wall[SMTP:rwall-at-ix-dot-netcom-dot-com]
Sent: 	Sunday, July 13, 1997 5:15 AM
To: 	Tesla List
Subject: 	Re: vacuum pump

Kristian wrote: 

>> performance of it, I find that the ultimate vacuum is measured in
>> microns.  In this case, 100 microns or better (tested to 25 
>>microns).  I've heard of vacuums being measured in Torr, and in 
>>inches of Hg, but can anyone out there enlighten me as to how I can 
>>convert this unit of measure to something that I can understand?
>
>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

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