This International Standard specifies a method for the absolute calibration of acoustic emission transducers. Theaim of this International Standard is to establish uniformity of acoustic emission testing in order to form a basis fordata correlation and to provide for the interpretation of results obtained by different laboratories at different times.An accepted method for the calibration of acoustic emission transducers must be specified to characterize theirbehaviour.This International Standard establishes a method for the primary calibration of acoustic emission transducers asreceivers of elastic waves at the surface of a solid medium. The calibration yields the frequency response of atransducer to waves of the type normally encountered in acoustic emission work. The transducer voltage responseis determined at discrete frequency intervals of approximately 10 kHz up to 1 MHz. The input is a given well-established dynamic displacement of the mounting surface. The units of the calibration are output voltage per unitmechanical input (displacement, velocity or acceleration). This International Standard is applicable to secondarystandard transducers and to acoustic emission applications transducers.