If the volume flow 10 SCCM at ground level. The what the flow rate at 12 km above the sea level?What is the factor?
If you are asking about volume expansion of the gas for pressure and temperature the pressure at 12 KM is about 20 Kpa which is about 1/5th of sea level pressure that would increase flow volume rate by a factor of 5. But its also pretty cold up there about -60 or-.70 C. That would decrease the factor to about 3.5. So if your question was about Actual CCM (ACCM) would increase from 10 to about 35. But you asked about Standard CCM which should be adjusted back to standard conditions so SCCM would remain the same at 10 SCCM.
This is obviously a hypothetical question that can be interpreted many different ways. If you clarify the question I might be able to provide a better answer.
There are two variables to calculate the volume , first the pressure and second the temperature. The mass conservation law which the mass in sea level equal to mass in 12 km above the sea level. By using the ideal gas law you can calculate the volume in two positions at different temperaure and prseeure.
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