First published as part of AS E1a-1926T.Revised and redesignated in part as AS E25-1928 and AS E26-1928.AS E25-1928 redated 1932.AS E26-1928 redated 1932.AS E25-1932 redated 1935.AS E26-1932 redated 1935.Second edition AS E25-1937.Second edition AS E26-1937.AS E25-1937 redated 1939.AS E26-1937 redated 1939.Third edition AS E25-1949.Third edition AS E26-1949.Fourth edition AS E25-1964.Fourth edition AS E26-1964.AS E25-1964 revised and redesignated in part as AS 1085.4-1978 and AS 1085.6-1978.AS E26-1964 revised and redesignated in part as AS 1085.5-1978 and AS 1085.6-1978.AS 1085.4-1978 second edition 1979.AS 1085.5-1978 second edition 1979.AS 1085.6-1978 second edition 1979.AS 1085.4-1979, AS 1085.5-1979 and AS 1085.6-1979 revised, amalgamated and redesignated AS 1085.4-1988.Fourth edition 1999.Fifth edition 2002.Reconfirmed 2013. First published as part of AS E1a-1926T. Revised and redesignated in part as AS E25-1928 and AS E26-1928. AS E25-1928 redated 1932. AS E26-1928 redated 1932. AS E25-1932 redated 1935. AS E26-1932 redated 1935. Second edition AS E25-1937. Second edition AS E26-1937. AS E25-1937 redated 1939. AS E26-1937 redated 1939. Third edition AS E25-1949. Third edition AS E26-1949. Fourth edition AS E25-1964. Fourth edition AS E26-1964. AS E25-1964 revised and redesignated in part as AS 1085.4-1978 and AS 1085.6-1978. AS E26-1964 revised and redesignated in part as AS 1085.5-1978 and AS 1085.6-1978. AS 1085.4-1978 second edition 1979. AS 1085.5-1978 second edition 1979. AS 1085.6-1978 second edition 1979. AS 1085.4-1979, AS 1085.5-1979 and AS 1085.6-1979 revised, amalgamated and redesignated AS 1085.4-1988. Fourth edition 1999. Fifth edition 2002.