Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
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GB 7330-1987 255.0 via email in 1~3 business day abolished
GB/T 13431-1992 Performance requirements for 120 - channel submarine coaxial cable carrier telephone equipment 150.0 via email in 1~3 business day abolished
GB/T 11328-1989 Specification for 24-channel telephone carrier--Terminal equipment used on the symmetric pair of 1. 2/2. 4mm synthetical coaxial cable 410.0 via email in 1~3 business day valid
YDJ 5-1985 Specification for Installation Design of Long-Distance Communications Carrier Telephone Equipment 810.0 via email in 1~3 business day valid
YD/T 1466-2006 Technical Requirements of IP Security (IPSec) 420.0 via email in 1~3 business day valid
GB 7435-1987 60.0 via email in 1~3 business day superseded
GB/T 13136-1991 Specifications for the local subscriber loop carrier equipment 530.0 via email in 1~3 business day abolished
YDJ 35-1981 Technical Specifications for Installation Engineering Construction and Acceptance of Long-Distance Communication Open-Wire Carrier Telephone Equipment 480.0 via email in 1~3 business day valid
YD/T 642-1993 Reliability indicator and test method of carrier communication equipment 300.0 via email in 1~3 business day abolished
GB/T 13169-1991 General specification for 4MHz (960ch) carrier systems on standardized 1.2/4.4mm coaxial cable pairs 120.0 via email in 1~3 business day abolished
GB/T 7330-2008 Line traps for a.c. power systems 450.0 via email in 1~3 business day valid
GB/T 7255-1998 Single sideband power-line carrier terminals 330.0 via email in 1~3 business day valid
GB 7255-1987 165.0 via email in 1~3 business day superseded
GB/T 21548-2008 Methods of measurement of the high speed semiconductor lasers directly modulated for optical fiber communication systems 375.0 via email in 1~5 business day valid
GB/T 13168-1991 General specification for 8MHz (1800ch) carrier systems on standardized 2.6/9.5mm coaxial cable pairs 120.0 via email in 1~3 business day abolished
GB/T 21194-2007 Generic reliability assurance requirements for optoelectronic devices used in telecommunications equipment 225.0 via email in 1~3 business day valid
GB/T 13430-1992 Performance requirements for 24-channel submarine coaxial cable carrier telephone equipment 325.0 via email in 1~3 business day abolished
GB/T 7329-1998 Coupling devices for power line carrier systems 165.0 via email in 1~3 business day abolished
YD/T 1468-2006 Technical Requirements of IPSec Traverse NAT 330.0 via email in 1~3 business day valid
GB/T 13429-1992 Measurement methods for 120-channel submarine coaxial cable carrier telephone equipment 330.0 via email in 1~3 business day abolished
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