guage pressure or absolute pressure..... 1

[fredkfchan]

Is the design pressure p in British standard BS 5500:1994 in gauge pressure or absolute pressure??

From the equation e = pDi/(2f-p)

A bit silly but want to make sure that............

 

[poetix99]

If your are referring to a standard for pressure vessels, etc. the pressure is surely gauge or differential pressure and not absolute pressure.

 

[prex]

Design pressure is a pressure difference across vessel wall, and is indeed a gauge pressure at least when the outside pressure is atmospheric. prex

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