Originated in Australia as part of MA 1.5—1967.Originated in New Zealand as part of NZS/AS 2312:1984.Previous edition part of AS/NZS 2312:2002.Jointly revised in part and redesignated as AS/NZS 2312.2:2014. Originated in Australia as part of MA 1.5-1967. Originated in New Zealand as part of NZS/AS 2312:1984. Previous edition part of AS/NZS 2312:2002. Jointly revised in part and redesignated as AS/NZS 2312.2:2014.