This part of IEC 61041 specifies the general requirements for the calibration tape which is used for measurement of signal characteristics of the playback systems of non-broadcast video tape recorders (NTSC/PAL/SECAM). The calibration tape specified in this part of IEC 61041 applies particularly to the measurement items prescribed in the relevant part of IEC 61041 which require complex test signals, which are unavailable from a general purpose test signal generator. The object of this part is to describe the methods of measurement for non-broadcast video tape recorders. This part of IEC 61041 describes also the procedures for generating the signals and for recording the signals on the calibration tape.