First published as part of AS C67-1939.AS C67 Supplement 1 first published 1947.AS C67-1939 and AS C67 Supp1-1947 revised and redesignated as AS C67-1963.AS C67-1963 revised and redesignated in part as AS 1137.1-1972.Second edition AS 1137.1-1981.AS 1137.1-1981 revised and redesignated in part as AS 2947.2-1989.AS 2947.2-1989 jointly revised and designated as AS/NZS 2947.2:2002.Revised in part and redesignated as AS 60305-2007.Reconfirmed 2018. Originated as part of AS C67-1939. Previous edition part of AS/NZS 2947.2:2002. Revised in part and redesignated as AS 60305-2007.