GB/T 51410-2020.Technical standard for application of firestop in buildings. 1总则 1.0.1 为防止火焰和烟气通过建筑缝隙和贯穿孔口在建筑内蔓延,保证建筑防火、防烟分隔的完整性与有效性,保障人身安全,减少火灾损失,制定本

GB 20052-2020.Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers. 1范围 GB 20052规定了三相电力变压器的能效限定值、能效等级

GB/T 5095.2509-2020.Electromechanical components for electronic equipment-Basic testing procedures and measuring methods-Part 25-9: Signal integrity t

GB/T 37733.2-2020.Sensor network-Remote personal health status monitoring一Part 2: Interface technical requirements between terminals and platform. 1范围

GB 51415-2020.Technical standard for waste gas control of non-ferrous smelting. 1总则 1.0.1 为规范有色金属冶炼废气治理技术，保护环境,制定本标准。 1.0.2 GB 51415适用于铅、锌、铜、镍、钴、铝、镁、钛

GB/T 38625-2020.Information security technology-Security test requirements for cryptographic modules. 1范围 GB/T 38625依据GB/T 37092-2018,规定了密码模块的检测要求和对应的

GB 51411-2020.Standard for design of metal mine land reclamation engineering. 1总则 1.0.1 为贯彻执行国家土地复垦相关法律、法规和方针、政策,统一金属矿山土地复垦工程设计,节约、集约利用土地与绿色发展，制定本标准。

GB/T 51413-2020.Standard for design of waste heat utilization in non-ferrous metal industry. 1总则 1.0.1 为落实国家技术经济政策,保障有色金属工业余热利用达到安全生产、节约能源、保护环境、技术先进、经

GB/T 9771.6-2020.Single-mode optical fibres for telecommunication-Part 6: Characteristics of a fibre with non-zero dispersion for wideband optical tra

GB/T 9771.1-2020.Single-mode optical fibres for telecommunication-Part 1 : Characteristics of a dispersion unshifted single-mode optical fibre. 1范围 GB

GB/T 38810-2020.Seamless stainless steel pipes for liquefied natural gas. 1范围 GB/T 38810规定了液化天然气用不锈钢无缝钢管的订货内容、尺寸、外形及重量、技术要求、试验方法、检验规则、包装、标志和质量证明书。 GB/

GB/T 38811-2020.Metallic materials-Residual stress-Method of sound beam control. 1范围 GB/T 38811规定了使用具有一定能量和方向性的声束(固体中的弹性波束)对金属材料表面和内部的残余应力进行控制的原理、设备.工