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Different between Nm3/h, Sm3/h and m3/h

Written by Administrator Saturday, 09 August 2008 16:46 - Last Updated Monday, 28 February 2011 02:56

Different between Nm3/h, Sm3/h and m3/h

Be careful when you see standard (Sm3/hr) or Normal (Nm3/hr) for the following reason, there is a variety of alternative definitions for the standard reference conditions of temperature and pressure. Sm3/hr, Nm3/hr and other definitions should therefore be used with care. It is always important to know the reference temperature and reference pressure for the actual definition used.

Nm3/hr - Normal Meters Cubic per Hour This is represent at a Temperature of 0 deg C and atmospheric pressure 1013 mbarA Sm3/hr - Standard Meters Cubic per hour

This is represent at a Temperature of 15,5ºC, 15,6ºC, 20ºC, 25ºC or other and atmospheric pressure 1013 mbarA. The standard temperature and pressure is different between industries, and it may be that Normal and Standard use the same temperature for your industry. Standard temperature is usually either 15,5ºC, 15,6ºC, 20ºC, 25ºC or other, and standard pressure is usually 1 atmosphere.

m3/hr - Actual Meters Cubed per hour

This is representing at the temperature and pressure conditions stated. So one cubic meter per hour (m3/hr) is a rate of volume. In other words, it's a actual flow rate or volume unit or flow rate uncorrected. More familiar units of measure for flow rate are gallons per minute or liters per second. Both of those imply a quantity of something per unit time. But a cubic meter per hour is also a legitimate unit of measure for flow rate.

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Different between Nm3/h, Sm3/h and m3/h

Written by Administrator Saturday, 09 August 2008 16:46 - Last Updated Monday, 28 February 2011 02:56

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