Specifies requirements for the design, construction and installation of fire-resistant doorsets including transom panels but excluding lift-landing doors and access panels, used to protect openings in walls and partitions required to resist the passage of fire. Shows the variation between Australia and New Zealand in regard to the certification, marking and identification of doorsets as determined by the building codes and practice in both countries. A series of tests by which the physical capacity of the doorsets may be measured is also included.

First published in Australia as AS CA57.1-1972. Revised and redesignated AS 1905.1-1976. Second edition 1982. Third edition 1984. Fourth edition 1990. First published in New Zealand as part of NZS 1188:1954. Revised and redesignated in part as NZS 4232.1:1988. AS 1905.1-1990 and NZS 4232.1:1988, jointly revised, amalgamated and designated AS/NZS 1905.1:1997.