What Bro. Larry said

High Performance "Superior" (Magnum) MSIP is 1200 BAR = 17,405 PSI for a Service Pressure of 1050 BAR = 15,229 PSI, and Mean Proof Pressure of 1320 BAR = 19,145 PSI.

BTW: FABARM voluntarily proof tests to 1630 BAR = 23,641 psi