Welcome to OnlineConversion.com


by abhishek_basak on 06/03/05 at 04:39:28

Hi all,

I came accrossthe following passage:

For Helium leak test, the acceptance criterion is as follows:
(i) e- lusecs per cubic meter for over all leak testing....

what does lusecs mean? I searched the net, but I could only find the following
Leak rate(lusecs)=volume(litres)x Pressure Rise in microns (10-3 Torr).

Can anyone clarrify the above..


Re: lusecs
by Robert Fogt on 06/03/05 at 04:53:39

I found the following definition for lusecs.

a unit of power used to express the performance or leakage of vacuum pumps. One lusec represents a flow of one liter per second at a pressure of one micrometer (or micron) of mercury, or 1 LmHg/s. Since "u" is sometimes used as a symbol for the micron, the name of the unit is an acronym for liter-micron/second. One lusec is equivalent to 1.3156 atmcm3/s or 133.3 Pacm3/s, which is the same as 133.3 microwatts.

Go Back | Archive Index


Did you find us useful?

Please consider supporting the site with a small donation.

click here for more information


BookMark Us

It may come in handy.

Check out our Conversion Software for Windows.

Can't find something?
Try searching.

Are you bored?
Try the Fun Stuff.

Was this site helpful?
Link to Us | Donate