Normal Cubic Meter (Nm3)
Normal Cubic Meter (Nm3) :
A unit of mass for gases equal to the mass of 1 cubic meter (35.3147 ft3) at a pressure of 1 atmosphere and at a standard temperature, often 0 °C (32 °F) or 20 °C (68 °F). The term standard cubic meter is also used; sometimes both are used, with different temperatures. Because industry practice varies, these terms should always be defined wherever they occur. The symbol Nm3, though common, is not permissible under the SI because that symbol means "newton cubic meter." An acceptable SI symbol would be "m3 normal." See also sccm
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