ISO 13856-3:2013 establishes general principles and specifies requirements for the design and testing of those pressure-sensitive protective devices, with or without an external reset facility, that are not specified in either ISO 13856‑1 or ISO 13856‑2, and the majority of which are produced for specific applications and are not available as "off-the-shelf" items.
ISO 13856-3:2013 also gives specific requirements for the following pressure-sensitive protective devices: pressure-sensitive bumpers; pressure-sensitive plates; pressure-sensitive wires (trip wires).
It deals with the design of a pressure-sensitive device with regard to safety and reliability rather than its suitability for particular applications.
It is not applicable to specifying the dimensions of pressure-sensitive protective devices in relation to any particular application, or stopping devices according to IEC 60204‑1 used for the normal operation, including emergency stopping of machinery.
While requirements are given for the immunity of the device to electromagnetic disturbances, these are not intended to cover all aspects of electromagnetic compatibility (EMC).