First published as AS CA43—1966.AS CA50 first published 1968.AS CA50 revised and redesignated AS 1694—1974.AS CA43—1966 revised and redesignated AS 2057—1977.Third edition 1986.AS 2178 first published 1978.Second edition 1986.AS 1694—1974, AS 2057—1986 and AS 2178—1986 revised, amalgamated and redesignated AS 3660—1993.AS 3660—1993 revised and redesignated in part as AS 3660.1—1995.Third edition 2014. First published as AS CA43-1966. AS CA50 first published 1968. AS CA50 revised and redesignated AS1694-1974. AS CA43-1966 revised and redesignated AS2057-1977. Third edition 1986. AS2178 first published 1978. Second edition 1986. AS1694-1974, AS2057-1986 and AS2178-1986 revised, amalgamated and redesignated AS3660-1993. AS3660-1993 revised and redesignated in part as AS3660.1-1995. Third edition 2014. Reissued incorporating Amendment No. 1 (September 2017).