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Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 28432-2012 Planning criteria for single frequency networks of digital terrestrial television broadcasting $210.00 via email in 1~3 business day valid
GB/T 28433-2012 Technical requirements for single frequency network of digital terrestrial television broadcasting $140.00 via email in 1~3 business day valid
GB/T 28434-2012 Technical requirements and measurement methods of digital terrestrial television broadcasting single frequency network adapter $390.00 via email in 1~3 business day valid
GB/T 28435-2012 Technical specifications and methods of measurement for digital terrestrial television broadcasting transmitters $390.00 via email in 1~3 business day valid
GB/T 28436-2012 Technical requirements and measurement methods of digital terrestrial television broadcasting exciter $450.00 via email in 1~3 business day valid
GB/T 28437-2012 Technical specifications of monitoring for digital terrestrial television broadcasting $270.00 via email in 1~3 business day valid
GB/T 28438.1-2012 Objective assessment and measurement methods for coverage of digital terrestrial television broadcasting signals—Part 1:Outdoor fixed reception $210.00 via email in 1~3 business day valid
GB/T 28438.2-2019 Objective assessment and measurement methods for coverage of digital terrestrial television broadcasting signals-Part 2:Mobile reception $220.00 via email in 1~3 business day valid
GB/T 28439-2012 General specification for thermal transfer ribbons $100.00 immediately valid
GB/T 28441-2012 Data quality specification for navigation electronic map in vehicle $390.00 immediately valid
GB/T 28442-2012 Data classification and coding for navigation electronic map $210.00 via email in 1~3 business day valid
GB/T 28443-2012 Symbols of navigation electronic map $990.00 via email in 1~3 business day valid
GB/T 28444-2012 Application storage format for navigational electronic chart $450.00 via email in 1~3 business day valid
GB/T 28445-2012 Data quality specification for navigation electronic map in personal position $450.00 via email in 1~3 business day valid
GB/T 28446.1-2012 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices—Human models,instrumentation,and procedures—Part 1:Procedure to determine the specific absorption rate(SAR)for hand-held devices used in close proxim $1170.00 via email in 1~5 business day valid
GB/T 28447-2012 Information security technology—Specification on the operation management of a certificate authority $450.00 via email in 1~3 business day valid
GB/T 28448-2012 and evaluation requirement for classified protection of information system $1830.00 via email in 1~3 business day abolished
GB/T 28448-2019 Information security technology—Evaluation requirement for classified protection of cybersecurity $2400.00 immediately valid
GB/T 28449-2012 Information security technology—Testing and evaluation process guide for classified protection of information system security $1080.00 via email in 1~3 business day superseded
GB/T 28449-2018 Information security technology-Testing and evaluation process guide for classified protection of cybersecurity $825.00 immediately valid
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