The scope of this SAE Standard is the definition of the functional, environmental, and life cycle test requirements for electrically operated, operator controlled forward warning horn devices, primarily intended for use on self-propelled, work machines as defined by J1116 (limited to categories of 1) construction, and 2) general purpose industrial).

The purpose of this document is to define a set of performance requirements for electric warning horns, independent of machine usage. The laboratory tests defined in this document are intended to provide a uniform and repeatable means of verifying whether or not a test horn meets the stated requirements. For on-machine requirements and test procedures, refer to ISO 9533.