ISO 17201-4:2006提供了一个计算模型，用于确定抛射声的声源级及其三分之一倍频程频谱，表示为12.5 Hz至10 kHz标称中频的声暴露水平。它还提供了如何使用该声源电平计算接收器位置处的声暴露电平的指导。 ISO 17201-4:2006适用于小于20 mm的口径，但也适用于大口径。此外，这些数据还可用于比较同一武器使用的不同类型弹药发出的声音。ISO 17201的本部分适用于民用射击场使用的武器，但也适用于军用武器。

ISO 17201-4:2006 provides a computational model for determining the acoustical source level of projectile sound and its one-third-octave-band spectrum, expressed as the sound exposure level for nominal mid-band frequencies from 12,5 Hz to 10 kHz. It also gives guidance on how to use this source level to calculate the sound exposure level at a receiver position. ISO 17201-4:2006 is intended for calibres of less than 20 mm, but can also be applied for large calibres. Additionally, the data can be used to compare sound emission from different types of ammunition used with the same weapon. This part of ISO 17201 is meant for weapons used in civil shooting ranges, but is also applicable to military weapons.