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Old 02-23-2014, 11:03 AM
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jr_tech jr_tech is offline
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Quote:
Originally Posted by snelson903 View Post
getting the equitment to vacuum it down is easy to come by ,any automotive a/c vacuum pump will 29.92'' hg or even a used refrigerator compressor will vac down to 29.92"hg =760 torr at 0 sea level .witch is more than enough .
Not even close... read my post above, it is difficult to express exponentials on this site. When I wrote 10 to the -6 mm of Hg, this. means 1 millionth of of a torr:

"One millionth is equal to 0.000 001, or 1 x 10−6 in scientific notation. It is the
reciprocal of a million, can be also written as 1/1 000 000. Units using this fraction"

jr
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