1.1 This specification covers aluminum 1350-O (annealed), 1350-H12 or -H22 (¼ hard), 1350-H14 or -H24 (½ hard), 1350-H16 or -H26 (¾This specification covers annealed and intermediate tempered round aluminum wires suitable for electrical purposes like stranding into conductors or for solid single conductors, either bare or insulated. The tempers covered here are 1350-O, 1350-H12 or