844199 SzGeCERN 20210423014856.0 DIN-12300 eng 23.020.40 Deutsches Institut für Normung. Berlin Cryogenic vessels Cleanliness for cryogenic service Berlin DIN 1999 9 p paper SzGeCERN Information Transfer and Management STANDARD CERN Depot 2, bldg. 2 (DE2) DIN-EN-12300 h 200524 applicable at CERN Expert ICS-23 Reviewed in June 2019 21 20091105 1009 CER01 20050617 PUBLIC 0001 002527716CER https://catalogue.library.cern/legacy/844199 BOOK STANDARD MIGRATED