First published in Australia in part as AS C66.1-1955.AS C154 first published 1958.AS C90 first published 1963.AS C173 first published 1964.AS C175 first published 1967.AS C183 first published 1970.AS C66.1-1955 and AS C90-1963 revised, amalgamated and redesignated AS 2052-1977.AS C154-1958, AS C173-1964, AS C175-1967 and AS C183-1970 revised, amalgamated and redesignated as AS 2053-1977.Second edition 1980.Third edition 1984.First published in New Zealand in part as NZS 127:1949.NZS 159.1 first published 1954 (Being BS 731.1:1952 with amendment).NZS 2250.1 first published 1969.NZS 2250.2 first published 1970.NZS 6221.1 first published 1972 (Being BS 4568.1:1970 endorsed with amendment).NZS 6221.2 first published 1972 (Being BS 4568.2:1970 endorsed with amendment).NZS 2250.1:1969 and NZS 2250.2:1970 revised, amalgamated and redesignated NZS 6207:1982.AS 2052-1977, AS 2053-1984, NZS 127:1949, NZS 159.1:1954, NZS 6221.1:1972, NZS 6221.2:1972 and NZS 6207:1982 jointly revised, amalgamated and redesignated in part as Joint Standard AS/NZS 2053.1:1995.Second edition 2001.Reconfirmed 2016. Originated in Australia, in part, as part of AS C66.1-1955, AS C90-1963, AS C154-1958, AS C173-1964, AS C175-1967 and AS C183-1970. Originated in New Zealand, in part, as part of NZS 127:1949, NZS 159.1:1954, NZS 2250.1:1969, NZS 2250.2:1970, NZS 6221.1:1972 and NZS 6221.2:1972. Previous edition AS/NZS 2053.1:1995. Second edition 2001.