weapon's grade plutonium not in excess of 5 GWd/t Plutonium not in excess of 5 GWd/t plutonium weapon's grade plutonium not in excess of 5 GWd/t weapon’s grade plutonium not in excess of 5 GWd/t Plutonium plutonium not in excess of 5 GWd/t weapon’s grade plutonium made into bombs not in excess of 5 GWd/t Plutonium plutonium ”Plutonium - World Nuclear Association” "Plutonium" not in excess of 5 GWd/t Plutonium not in excess of 5 GWd/t not in excess of 5 GWd/t not in excess of 5 GWd/t world-nuclear.org has put it a nominal 66.2% fissile Pu fraction made into bombs plutonium weapon’s grade plutonium