what is the ANSI/TIA-942 typical range of pressure differential regarding positive pressure for data center.

Less than or equal to –0,1 in water column (-25 Pa)

More than -0,005 in wc (< -1,24 Pa), but less than or equal to +0,05in wc (+12,4 Pa)

More than +3in wc (>746Pa),but less than or equaltto+6,in wc(1492 pa))

Less Than –4,+4 inches water column(-1000 opa ,+100 )