1999DVS 0955-1999 Welding processing of nickel alloy steel for low temperature use
1973DVS 1501-1973 "Recommendations for the welding of the nickel steels 10 Ni 14, 12 Ni 19 and X 8 Ni 9 having a high impact strength at low temperature"
DVS 0955-1999 Welding processing of nickel alloy steel for low temperature use has been changed from DVS 1501-1973 "Recommendations for the welding of the nickel steels 10 Ni 14, 12 Ni 19 and X 8 Ni 9 having a high impact strength at low temperature".