All firearms must be stored in a metal safe, or a concrete or brick safe. If you intend to store your firearms in a metal safe, it must be constructed of structural grade mild steel that conforms to this standard.
The standard specifies the requirements for the production and supply of hot-rolled structural steel plates, floorplates and slabs for general structural and engineering applications. It also specifies requirements for the production and supply of wide slabs as fully killed analysis-only steel.
Please consult the Contact Officer for more information and to ascertain the level of compliance (if any) that may be required.