Coverage. Instruments covered by this trialuse standard are electronic digitizing waveform recorders@ waveform analyzers@ and digitizing oscilloscopes with digital outputs. This trial-use standard is directed toward@ but not restricted to@ general-purpose waveform recorders and analyzers. Special applications may require additional manufacturer information and verification tests. Purpose. The purpose of this trial-use standard is to provide common terminology and methods for describing the performance of waveform recorders. is meant for users and manufacturers of these devices. The main body presents many performance features@ sources o f error@ hardware. 1.2 Purpose. The purpose of this trial-use standard is to provide common terminology and methods for describing the performance of waveform recorders. It is meant for users and manufacturers of these devices. The main body presents many performance features@ sources of error@ test methods. The tests are meant to be used manufacturers to locate and@ it is hoped@ correct sources of error in the hardware.