NACE-MR0175-or-ISO-15156

7ISOANSINACETHE WORLDWIDE CORROSION AUTHORITYItem No.21307International StandardANSI/NACE MR0175/ISO15156-1:2015Petroleum,petrochemical,and naturalgas industries-Materials for use inH2S-containing environments in oil andgas production-Part 1:General principles for selection ofcracking-resistant materialsAn American National StandardApproved November 23,2015Reference numberANSI/NACE MR0175/ISO 15156:2015©ANSI/NAC E/ISO2015-”ww”woc886生gh合&7w9a28o1.,Ae