NF A88-110-5*NF EN ISO 9606-5:2000 Approval testing of welders - Fusion welding - Part 5 : titanium and titanium alloys, zirconium and zirconium alloys
2000NF A88-110-5*NF EN ISO 9606-5:2000 Approval testing of welders - Fusion welding - Part 5 : titanium and titanium alloys, zirconium and zirconium alloys