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BS PD CEN ISO/TR 20659‑2:2024 Rheological test methods. Fundamentals...

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ITU-T R.43 Simultaneous communication by telephone and telegraph on a telephone-type circuit
ITU-T N.63 Test signals to be used by the broadcasting organizations during the preparatory period
ITU-T U.8 Hypothetical reference connections for telex and gentex networks
ITU-T G.742 Second order digital multiplex equipment operating at 8448 kbit/s and using positive justification
ITU-T T.71 Link access protocol balanced (LAPB) extended for half-duplex physical level facility
ITU-T R.103 Code and speed-dependant TDM 600 bit/s system for use in point-to-point or branch-line muldex configurations
ITU-T R.140 Definitions of essential technical terms in the field of telegraph transmission
ITU-T G.602 Reliability and availability of analogue cable transmission systems and associated equipment
ITU-T J.11 Hypothetical reference circuits for sound-programme transmissions