Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1258.3-2003 The series of indoor optical fibre cables part 3:dual-fibre optical cable 270.0 via email in 1~3 business day abolished
YD/T 1550.8-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iub Interface(Phase I)Part 8:User Plane Protocol for DCH Data Streams 330.0 via email in 1~3 business day valid
GB/T 14731-1993 Synchronous digital hierarchy bit rates 45.0 via email in 1~3 business day abolished
YD/T 1373-2008 Technical Requirements for Uu Interface of 2GHz TD-SCDMA Digital Cellular Mobile Communication Network Layer 3 Technical Specification:RRC Protocol 12810.0 via email in 1~10 business day valid
YD/T 1877-2009 Testing Method for (HRPD)(Phase 2)Air Interface in 800MHz/2GHz cdma2000 Digital Cellular Mobile Communication Networks Network Compatibility 420.0 via email in 1~3 business day valid
GB/T 26261-2010 General technical requirements of used telecommunication equipment appraisal 120.0 via email in 1~3 business day valid
YDC 029-2003 Low and High Frequency EMC Mitigation Techniques for Telecommunication and Systems 240.0 via email in 1~3 business day valid
SJ/T 11199-1999 Piezoelectric quartz crystal blank 90.0 via email in 1~3 business day abolished
GB/T 14716-1993 specification for stored program control analogue private automatic branch telephone exchange system 750.0 via email in 1~3 business day valid
YD/T 1819-2008 Integrative Gather Frame Which Used in Communication Equipment 150.0 via email in 1~3 business day abolished
YD/T 1428.3-2005 Testing methods for 900/1800MHz TDMA digital cellular mobile communication network CAMEL Application Part (CAP)(CAMEL3)Part three-SSP PS 3420.0 via email in 1~3 business day valid
GB/T 18122-2000 Audio visual equipment and systems - Rating plates - Marking of electricity supply 105.0 via email in 1~3 business day valid
JC/T 1048-2007 Fused quartz crucibles for single crystal silicon growth 105.0 via email in 1~3 business day valid
GBJ 142-1990 for protective space between medium and short wave radio emission stations and cablecarrier communication systems 120.0 via email in 1~3 business day valid
YD/T 1962-2009 Software Technical Requirements for 10Gbit/s and 40Gbit/s Transponder with Multiplex/Demultiplex 1110.0 via email in 1~3 business day valid
YD/T 1880-2009 The Technical Requirement of Softswitch and Circuit Switching Network Interworking between Networks 120.0 via email in 1~3 business day valid
GB/T 4958.12-1988 Methods of measurement for equipment used in terrestrial radio-relay systems-Part 3:Simulated systems-Section Four Measurements for f.d.m. transmission 120.0 via email in 1~3 business day valid
GB/T 24365-2009 Testing methods of optoelectronic detector module for communication 240.0 via email in 1~3 business day valid
YD/T 1826-2008 Network Security Emergency Handling Team Construct Guidelines 150.0 via email in 1~3 business day valid
GB 6661-1986 Nipples for insert earphones 45.0 via email in 1~3 business day valid
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