First published as part of AS 2106-1977.Second edition 1980.Jointly revised and redesignated in part as AS/NZS 2106.5:1999.Previous edition AS/NZS2106.5:1999.Revised and designated as AS2106.5-2005.Reconfirmed 2016. Originated as part of AS 2106-1977. Previous edition AS/NZS 2106.5:1999. Revised and designated as AS 2106.5-2005.