First published as part of AS A89-1966.AS A89.22A first published 1973.AS A89-1966 and AS A89.22A-1973 revised, amalgamated and redesignated in part as AS 1289.C7.1-1977.AS 1289.C7.1-1977 revised and redesignated as AS 1289.3.7.1-1995.Second edition 2002.Reconfirmed 2013. Originated as part of AS A89-1966 and AS A89.22A-1973. Previous edition AS 1289.3.7.1-1995. Second edition 2002.