This Standard was prepared by the Standards Australia Committee MS-047, Intruder Resistance Building Panels, following a request from the Department of Housing and Construction on behalf of the interdepartmental Security Hardware and Construction Working Committee, to supersede AS 3555 – 1988, Building elements – Testing and rating for intruder resistance.
The objective of this Standard is to provide a method for testing and rating the resistance of an element of a building to forcible attack.
The method described is a destructive test using personnel and equipment to simulate an actual attack. It relies heavily on the competence and experience of the personnel in performing such an attack. The ratings determined may not necessarily be reproducible and should, therefore, be considered as comparative rather than as an absolute indication of the minimum time to breach the building element.
The selection of tools to be used for the simulated attack are based on an attack that can be carried out without regard to noise, smoke, vibration, etc., generated during the attack.
A building element shall be tested in accordance with Appendix A of the full standard at one of the following levels of attack:
NOTE: See Clause 1.4.2 to 1.4.5 of the full standard for descriptions of tools.
When tested in accordance with Appendix A, a building element shall be rated according to the time required to create an opening in it of at least 620 cm2. The dimensions of the opening shall be –
A building element shall be assigned a rating as follows:
The rating shall be expressed in relation to the level of attack, e.g., Level2 (5minutes).
NOTE: For applications where the rating system described in the Rating section above is not appropriate, the time taken to form the opening, expressed in minutes, may be reported.