GJB 736.11 is part eleven of the Chinese national military standard for the testing of pyrotechnic devices and specifies the method by which the electrostatic sensitivity of an electrically initiated explosive device is determined. The measurement matters because such a device combines two properties that together create the hazard: it contains an energetic material, and it has a metallic path connected to that material through which an accidental discharge can travel. A charge that is harmless to an integrated circuit can therefore be sufficient to fire the device, and the risk arises at every stage of handling, assembly and installation. The standard defines the test circuit, which represents the human body and the handling equipment, the capacitance and series resistance used, the method of applying the discharge and the criterion by which the device is judged to have fired. The result is expressed as the highest discharge energy that does not initiate the device and the lowest that does, and it is used to set the protection requirements of the installation.