Could somebody upload following standard :

IEC Technical Report 61206 : Ultrasonics – Continuous Wave Doppler systems – Test procedures

IEC 61895: Ultrasonics – Pulsed Doppler diagnostic systems – Test procedures to determine performance

IEC 61102:, Measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0,5 MHz to 15 MHz

Thank you very much

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