行业标准

QB/T 4054-2019.Time synchronized systems.QB/T 4054规定了时间同步系统(以下简称“系统”)的术语和定义、要求、试验方法、检验规则及标志、包装、运...

QB/T 1090一2019/ISO 4919:2012.Carpet-Determination of tuft withdrawal force.QB/T 1090规定了地毯绒簇拔出力的测定方法。QB/T 1090适用于所有具有割绒绒头或圈绒...

QB/T 5379-2019.The design specification of bolted vitreous and porcelain enamelled steel tanks for the storage water or treatment of municipal or industrial effluents and sludges.QB...

YD/T 1772-2008.Test Method for Access Network Equipment-Multi-Service Access Node(MSAN).1范围YD/T 1772规定了综合接入系统的业务能力、功能、接口、性能、操作管...

YD/T 1771-2008.Technical Requirements for Access Networks-Interoperability of EPON Systems.1范围YD/T 1771规定以太网无源光网络(EPON)系统的物理媒质相关(PMD)子层、...

YD/T 1770-2008.Indoor-Outdoor Optical Fibre Cable for Access Network.1范围YD/T 1770规定了室内外光缆的术语、产品型号和标记、要求、试验方法、检验规则、...

YD/T 1769-2008.Technical Specification for Optical Line Protection Management System.1范围YD/T 1769规定了光线路保护管理系统功能及技术要求。YD/T 1769适用于光线...

YD/T 1765-2008.Noun Terms in Communication Safety and Protection.1范围YD/T 1765规定了与通信安全防护有关的名词术语。YD/T 1765适用于通信安全防护中名词术...

YD/T 1789-2008.Mobile Multimedia Broadcast Service Technical Requirements for Equipment of Terminal and Card.1范围YD/T 1789规定了在提供移动多媒体广播业务时移动终端...

YD/T 1790-2008.Mobile Multimedia Broadcast Service Technical Requirements for Application Layer Interface.1范围YD/T 1790规定了在提供移动多媒体广播业务时的应用层接...