On Wed, 7 Jan 1998 13:09:03 -0500, Steve Lindblom wrote:

>Can someone tell me how one decides, in the metric system, whether to give
>pressure as kg/cm2, bar, or whatever? I notice tank pressures seem to be
>given in bar, and  most others in kg/cm2.

The use of the bar was popularized in diving terminology because it is short
and easy to say, as 
opposed to kilograms per centimeter squared, or even the atmosphere (ATM).  The
SI unit of pressure 
is actually the Newton per square meter (N/m2), often called the Pascal.

-Sean


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