01004nam 2200325 450 991071595350332120210412105648.0(CKB)5470000002516560(OCoLC)1245855545(EXLCZ)99547000000251656020210412d1980 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierGeneric technical activity A-12 fracture toughness[Washington, D.C ] :[U.S. Nuclear Regulatory Commission],1980.1 online resourceGeneric letter ;80-46"May 19, 1980."Nuclear power plantsPipingFracturesNuclear power plantsPipingFractures.U.S. Nuclear Regulatory Commission,GPOGPOBOOK9910715953503321Generic technical activity A-12 fracture toughness3270347UNINA