API RP 934-A RUSSIAN-2008
Materials and Fabrication of 2 1/4Cr-1Mo@ 2 1/4Cr-1Mo-1/4V@ 3Cr-1Mo@ and 3Cr-1Mo-1/4V Steel Heavy Wall Pressure Vessels for High-temperature@ High-pressure Hydrogen Service (SECOND EDITION; Incorporates ADDENDUM 1: February 2010)