slpm to g/s
by Nils Danielson on 01/27/04 at 06:44:12

I need to convert the following:
    44 slpm, 81 slpm and 221 slpm to grams per second of helium gas.
         Thanks for any help in this.

Re: slpm to g/s
by Robert Fogt on 01/28/04 at 00:55:26

Do you happen to know the density of the gas?

The only way to convert volume to weight is if you know the density.

The unit slpm stands for standard liters per minute. With the word standard meaning it is measured at standard temperature and pressure. But for the life of me couldn't find out what the standard temperature and pressure of helium is, and would need to know the density of helium at standard temperature and pressure.

Re: slpm to g/s
by Nils Danielson on 01/28/04 at 11:21:43

It is Helium 3 at ambient temperature which can be anywhere from 55 F to 100 F depending on the time of year and outside temp. being drawn into the building's by the ventilation systems. So your guess would be as good as mine.  

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