Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1236-2002 The technical requirement and test methods for video conference system based on N-ISDN 1575.0 via email in 1~10 business day valid
YD/T 1237-2002 The Technical Requirements and Test Methods for PSTN Videophone 435.0 via email in 1~5 business day valid
GB/T 17561-1998 Instruments for the measurement of sound intensity--Measurement with pairs of pressure sensing microphones 315.0 via email in 1~3 business day valid
GB/T 12060.11-2012 Sound system equipment—Part 11:Application of connectors for the interconnection of sound system equipment 260.0 via email in 1~3 business day valid
YD/T 948-1998 Generic application temple for multimedia conferencing service 495.0 via email in 1~5 business day valid
SJ/T 11121-1997 General specification for video control equipment of CCTV 105.0 via email in 1~3 business day valid
GB/T 15845.4-2003 Performance requirements of audiovisual terminals - Narrow-band audio visual system and terminal equipment 285.0 via email in 1~3 business day valid
GB/T 17576-2011 Compact disc digital audio system 1230.0 via email in 1~3 business day valid
GB/T 17576-1998 Compact disc digital audio system 555.0 via email in 1~5 business day superseded
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