First published in Australia as AS O90.1—1964.Revised and redesignated AS 2098.1—1977.First published in New Zealand as part of NZS 3611:1970, NZS 3612:1970 and NZS 3613:1970.Jointly revised, amalgamated and designated AS/NZS 2098.2:1996.Third edition 2012. First published in Australia as AS O90.1-1964. Revised and redesignated AS 2098.1-1977. First published in New Zealand as part of NZS 3611:1970, NZS 3612:1970 and NZS 3613:1970. Jointly revised, amalgamated and designated AS/NZS 2098.2:1996. Third edition 2012.