Under Revision See DR 94366 First published in part as AS C153-1951.Revised and redesignated AS 3153-1976.Second edition 1982.Revised and redesignated AS 3308.1-1984.AS 3308.2 first published 1984.AS 3153-1982 withdrawn 1987.Second edition AS 3308.1-1988.Second edition AS 3308.2-1988.AS 3308.1-1988 and AS 3308.2-1988 revised, amalgamated and redesignated AS 3308-1992. First published in part as AS C153-1951. Revised and redesignated AS 3153-1976. Second edition 1982. Revised and redesignated AS 3308.1-1984. AS 3308.2 first published 1984. AS 3153-1982 withdrawn 1987. Second edition AS 3308.1-1988. Second edition AS 3308.2-1988. AS 3308.1-1988 and AS 3308.2-1988 revised, amalgamated and redesignated AS 3308-1992.