Originated in Australia, in part, as AS C154—1958.Originated in New Zealand, in part, as NZS 159.1:1954, NZS 6221.1:1972 and NZS 6221.2:1972.Previous and first joint editions AS/NZS 2053.4:1995 and AS/NZS 2053.8:1995.Jointly revised, amalgamated and redesignated as AS/NZS 61386.23:2015. Originated in Australia, in part, as AS C154-1958. Originated in New Zealand, in part, as NZS 159.1:1954, NZS 6221.1:1972 and NZS 6221.2:1972. Previous and first joint editions AS/NZS 2053.4:1995 and AS/NZS 2053.8:1995. Jointly revised, amalgamated and redesignated as AS/NZS 61386.23:2015.