AS CK9.2 first published 1967.Revised and redesignated as AS 1627.2-1975.Second edition 1989.AS CK9.7 first published 1967.Revised and redesignated as AS 1627.7-1977.Second edition 1988.AS 1627.2-1989 and AS 1627.7-1988 revised, amalgamated and designated as AS 1627.2-2002.Reconfirmed 2017. Originated as AS CK9.2-1967 and AS CK9.7-1967. Previous editions AS 1627.2-1989 and AS 1627.7-1988. AS 1627.2-1989 and AS 1627.7-1988 revised, amalgamated and redesignated as AS 1627.2-2002. Originated as AS CK9.2-1967 and AS CK9.7-1967. Previous editions AS 1627.2-1989 and AS 1627.7-1988. AS 1627.2-1989 and AS 1627.7-1988 revised, amalgamated and redesignated as AS 1627.2-2002.