Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1686-2007 Speech Quality and Transmission Performance Requirements and Testing Methods for IP Telephony Terminal Equipment 390.0 via email in 1~5 business day superseded
YD/T 1884-2009 Sound Pressure Level Limit Requirement and Measurement Method of Telecommunication & Information Terminal Equipment via email in business day abolished
YD/T 1361-2005 Technical requirements and testing methods for telephone dialer 225.0 via email in 1~3 business day valid
YD/T 1330-2004 Techincal requirements and testing methods for data communication interface converters 855.0 via email in 1~8 business day valid
YD/T 1806-2008 The Technical Requirements for the Devices Based on IP in Remote Visual Surveillance System 360.0 via email in 1~3 business day valid
YD/T 1896-2009 Criteria for Use Instructions of Mobile Terminal Products 150.0 via email in 1~3 business day valid
YD/T 1666-2007 Technical Specification for Long Distance Remote Visual Surveillance System Security 180.0 via email in 1~3 business day valid
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