First published in Australia as AS C160-1959.Revised and redesignated AS 3160-1974.Second edition 1981.Third edition 1987.Fourth edition 1989. First published in New Zealand as NZS/AS 3160:1989.Jointly revised and designated as Joint Standard AS/NZS 3160:1993. First published in Australia as AS C160-1959. Revised and redesignated AS 3160-1974. Second edition 1981. Third edition 1987. Fourth edition 1989. First published in New Zealand as NZS/AS 3160:1989. Jointly revised and designated as Joint Standard AS/NZS 3160:1993.