10 Shock testing conditions 10.1 Pulse shape and tolerance The equipment under test shall be subjected to a sequence of single half sine pulses each with a nominal duration of D and a nominal peak amplitude of A conforming to IEC 60068-2-27 (see Figure 7 for values of D and A). The transverse acceleration shall not exceed 30 % of the peak acceleration of the nominal pulse in the intended direction in accordance with IEC 60068-2-27. Figure 7 shows pulse shape and tolerance limits.