1191351 SzGeCERN 20210423013654.0 ISO-13919-1 eng 25.160.40 International Organization for Standardization. Geneva Welding Electron and laser-beam welded joints : guidance on quality levels for imperfections : part 1 : steel Geneva ISO 1996 9 p SzGeCERN Engineering STANDARD http://cds.cern.ch/record/1191351/files/ISO_13919-1 h 200930 no longer applicable Expert ICS-25.160 withdrawn Reviewed in December 2019 21 20100429 1649 CER01 20090720 PUBLIC 002833618CER https://catalogue.library.cern/legacy/1191351 BOOK STANDARD MIGRATED