ISO 5347 comprises a series of documents dealing with methods for the calibration of vibration and shock pick-ups. This part of ISO 5347 lays down detailed specifications for the instrumentation and procedure to be used for magnetic field sensitivity testing. It applies to all kinds of pick-ups, whereby pick-up output due to applied magnetic field is determined. This part of ISO 5347 is applicable for a reference magnetic field of 10−3 T1) r.m.s. at 50 Hz or 60 Hz.